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Old 06-14-2013, 02:15 PM
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Obviously best practice when carrying is keeping one ready in the chamber. My question to everyone is how often do you dechamber that round? And when you dechamber round What do you do with round to avoid setback. Do u put it back on top of mag or cycle ammo in mag or what? I've done some studying up on how putting that round back on top of mag and chambering it again and again causes bullet setback. Consequences can be severe and costly.
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Old 06-14-2013, 02:53 PM
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I keep a JHP round chambered at all times. The only times I remove the chambered round is if I am training, and don't want to fire that round. My defense ammo is all hollow point (JHP), whereas my training ammo is full metal jacket (FMJ). I load (and prefer) Hornady Critical Duty because it is specially designed to help prevent setback. The unchamberred round is then placed "lower" in the carry magazine so that a fresh round is chambered when I'm ready. Only other time I remove the round is when cleaning my gun.
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Old 06-14-2013, 03:35 PM
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I make sure I don't keep re-chambering the same round. I usually unload the round in the chamber by pressing the trigger at the range. Every quarter I try and use up the service ammo I've been carrying in my sidearm and duty mags and replace with fresh stuff.
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Old 06-14-2013, 04:10 PM
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I have a plastic ammo box that I have marked "range use" and when I need to de-chamber a round, I put it in this box. Once I have chambered a round from the magazine, I don't re-chamber it until I am at the range.

Now, I've read conflicting reports about loading a round directly into the chamber, versus loading it from the magazine. Some say it harms the extractor, while others say it is isn't an issue with external extractors like it is with internal extractors. (I don't know for sure, but I don't do it.) I saw my local gun smith do it, after he handed me his personal SIG P239 to handle; he dropped the round he had removed from the chamber before letting me look at the gun, right back into the chamber. His opinion was that it didn't hurt external extractors, and that it prevented the bullet setback issue from repeatedly re-chambering the same round from the magazine. He said he wouldn't do in on a 1911 (or any other gun) with an internal extractor.
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Old 06-14-2013, 05:06 PM
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Now, I've read conflicting reports about loading a round directly into the chamber, versus loading it from the magazine. Some say it harms the extractor, while others say it is isn't an issue with external extractors like it is with internal extractors. (I don't know for sure, but I don't do it.) I saw my local gun smith do it, after he handed me his personal SIG P239 to handle; he dropped the round he had removed from the chamber before letting me look at the gun, right back into the chamber. His opinion was that it didn't hurt external extractors, and that it prevented the bullet setback issue from repeatedly re-chambering the same round from the magazine. He said he wouldn't do in on a 1911 (or any other gun) with an internal extractor.
I won't do it with either type...the way I see it, the weapon was designed to feed from the magazine and have the cartridge rim slide up under the extractor hook rather than snap over the top. Why chance it? Besides, it gives me another opportunity to practice a mag exchange.
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Old 06-14-2013, 08:21 PM
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The answer is to stop unloading your firearm.
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Old 06-15-2013, 01:53 PM
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Once I've chambered a round it stays there unless I need to clean or secure the piece. If for whatever reason I need to unload it I stand it next to a factory fresh round to check for set back, if it still mikes out, it goes back on top the mag and gets re-chambered.
You should shoot your carry ammo(what's in your mags) once a year and put fresh in, unless its exposed to the elements or sweat. Most ammo is waterproof, but sweat is salt based and it can corrode your brass or what's know as verdigris. And you should train with your carry ammunition too. Dale
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Old 06-16-2013, 05:03 PM
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The answer is to stop unloading your firearm.
Not unloading your carry weapon makes it rather difficult to perform dry fire drills.
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Old 06-16-2013, 05:15 PM
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Not unloading your carry weapon makes it rather difficult to perform dry fire drills.

Or clean it if it needs to be cleaned.
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Old 06-16-2013, 05:55 PM
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I carry a Glock 23 most of the time, and it stays loaded. I haven't cleaned it for 450 rounds. I do add lube; Slip 2000 EWL as needed--this is the only time I unload it. I may clean it when it reaches 500 rounds, we'll see. I chamber a round once from the magazine, and after it comes out it gets relegated to practice.

I bought another Glock 23 to use for dry fire, range practice, and as a back up.

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Old 06-16-2013, 08:16 PM
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I unload at the end of each day since my Semi-auto is not my nightstand gun. And I usually just put that round back on top of the magazine, but now after reading this I don't think that is a good idea so that ends today. I like to rotate between two 13 round magazines that I have for my XD monthly, I thought that springs could lose their springyness for a while before a thread convinced me otherwise. I buy a new box of JHP every 6 months usually from Doubletap since my friend works for them, swears by them, and I get a discount. I lube weekly a little, and clean everything once a month just to keep it all in working order. Though on Sundays everything gets unloaded anyways for dry-fire practice.
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Old 06-16-2013, 08:53 PM
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Carry gun is different than my carry most of the time, I unload it everything I get home and put tin the safe. I inspect the chamber round and if it seems good it stays the chamber round. Once issues on the rim are present it gets shoot of at the range, I have had some really buggered up rounds fire just fine. Yes, I carry one in the chamber in the 4013.

"Bump n the night" gun is different. Nothing in the chamber but a full mag. I want to be awake enough to chamber a round before I decide I need to shoot. If someone is that far in my house,past the k9 alarm system, to the point I need to be quick draw McGraw I am I other trouble. Also something to be said about hearing that 4566 slide getting cycled nice and loud and obvious.

No matter what, be prepared my friends.
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Old 06-16-2013, 10:23 PM
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Carry gun is different than my carry most of the time, I unload it everything I get home and put tin the safe. I inspect the chamber round and if it seems good it stays the chamber round. Once issues on the rim are present it gets shoot of at the range, I have had some really buggered up rounds fire just fine. Yes, I carry one in the chamber in the 4013.

"Bump n the night" gun is different. Nothing in the chamber but a full mag. I want to be awake enough to chamber a round before I decide I need to shoot. If someone is that far in my house,past the k9 alarm system, to the point I need to be quick draw McGraw I am I other trouble. Also something to be said about hearing that 4566 slide getting cycled nice and loud and obvious.

No matter what, be prepared my friends.
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Your "noise" will do nothing but let them know exactly where you are. To each their own. But I will never be caught without one in the chamber. And if God forbid my wife gets to my gun first, the last thing I want is for her to have to chamber a round. YMMV
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Old 06-16-2013, 10:56 PM
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All guns in my safe are loaded at all times. I only unload weapons for cleaning. Dry fire routines are conducted using a revolver instead of semi-auto, because mastering the DA trigger lets you easily master anything else and because I don't want to have to repeatedly re-chamber rounds in my semi-autos. If I do need to unload my semi-auto and then reload it, I won't re-chamber the same round more than two or three times and I inspect it every time before reloading.

-Rob
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Old 06-16-2013, 11:01 PM
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Some round/weapon combinations are really prone to set back and resulting high pressure catastrophic failures - Glocks in 40 are a prime example. I almost never run a round back into the chamber if it has been chambered once and removed. As a rule, this should NEVER be done with an AR platform, as there have been problems with the light strikes of chambering desensitizing the primer. A serious pistol should never be unloaded except for maintenance; if you have concerns because of kids in your home, wear it on your person. If you have to remove a round from the chamber for some odd reason, it goes in the training pile.

I almost never clean a firearm unless I have been shooting or will be storing for a long period. Gun cleaning is not something that should be treated as a sacrament; most folks do it too much and it serves no good purpose. Again, this is especially true of the AR platform. If you have learned the white glove approach, pay someone to head slap you until you recover. An AR might need parts inspection every 5K rounds, but it surely does not need cleaning that often. Run it wet. I've seen ARs with 20K+ rounds that have never been cleaned, and have never malfed. (A failure in the cycle of operation is a malfunction - jam goes on toast.) 10 minutes with some SLIP 2000, a couple of paper towels, a couple patches for wiping small places, a bore snake if you are too anal like me, and some SLIP EWL in the right places, and your AR should be good to go for another several thousand rounds with just added lube.

When I got my issued G21, I ran a few rounds of ball and a bunch of duty ammo through it. Over 700 rounds in a few days, and I never cleaned it until I was done. If it had malfed from being dirty (as opposed to to dry) in so few rounds, I would consider it defective. I've done similar with a 1911 (A Yam 10-8 package on a Springfield) and a Wilson KZ-9. Same analysis.
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Old 06-16-2013, 11:36 PM
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Some round/weapon combinations are really prone to set back and resulting high pressure catastrophic failures - Glocks in 40 are a prime example. I almost never run a round back into the chamber if it has been chambered once and removed. As a rule, this should NEVER be done with an AR platform, as there have been problems with the light strikes of chambering desensitizing the primer. A serious pistol should never be unloaded except for maintenance; if you have concerns because of kids in your home, wear it on your person. If you have to remove a round from the chamber for some odd reason, it goes in the training pile.

I almost never clean a firearm unless I have been shooting or will be storing for a long period. Gun cleaning is not something that should be treated as a sacrament; most folks do it too much and it serves no good purpose. Again, this is especially true of the AR platform. If you have learned the white glove approach, pay someone to head slap you until you recover. An AR might need parts inspection every 5K rounds, but it surely does not need cleaning that often. Run it wet. I've seen ARs with 20K+ rounds that have never been cleaned, and have never malfed. (A failure in the cycle of operation is a malfunction - jam goes on toast.) 10 minutes with some SLIP 2000, a couple of paper towels, a couple patches for wiping small places, a bore snake if you are too anal like me, and some SLIP EWL in the right places, and your AR should be good to go for another several thousand rounds with just added lube.

When I got my issued G21, I ran a few rounds of ball and a bunch of duty ammo through it. Over 700 rounds in a few days, and I never cleaned it until I was done. If it had malfed from being dirty (as opposed to to dry) in so few rounds, I would consider it defective. I've done similar with a 1911 (A Yam 10-8 package on a Springfield) and a Wilson KZ-9. Same analysis.
They only time I clean a carry gun is of course after a range session but also with guns that I pocket carry. Lint is an enemy. And it's amazing how much gets in there.
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Old 06-17-2013, 12:11 AM
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I clear my pistol daily. After clearing, I wipe it with an old oily rag.

I use the same load for everything (hand loading is great: who can afford to shoot if you're paying retail?) so I know what it's supposed to look like. I routinely look at the round I've cleared. If it's banged up (maybe once a month) it goes in an empty mag.

My drill is to load from the magazine, then top off the mag.
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Old 06-17-2013, 08:15 AM
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Some round/weapon combinations are really prone to set back and resulting high pressure catastrophic failures - Glocks in 40 are a prime example. I almost never run a round back into the chamber if it has been chambered once and removed. As a rule, this should NEVER be done with an AR platform, as there have been problems with the light strikes of chambering desensitizing the primer. A serious pistol should never be unloaded except for maintenance; if you have concerns because of kids in your home, wear it on your person. If you have to remove a round from the chamber for some odd reason, it goes in the training pile.

I almost never clean a firearm unless I have been shooting or will be storing for a long period. Gun cleaning is not something that should be treated as a sacrament; most folks do it too much and it serves no good purpose. Again, this is especially true of the AR platform. If you have learned the white glove approach, pay someone to head slap you until you recover. An AR might need parts inspection every 5K rounds, but it surely does not need cleaning that often. Run it wet. I've seen ARs with 20K+ rounds that have never been cleaned, and have never malfed. (A failure in the cycle of operation is a malfunction - jam goes on toast.) 10 minutes with some SLIP 2000, a couple of paper towels, a couple patches for wiping small places, a bore snake if you are too anal like me, and some SLIP EWL in the right places, and your AR should be good to go for another several thousand rounds with just added lube.

When I got my issued G21, I ran a few rounds of ball and a bunch of duty ammo through it. Over 700 rounds in a few days, and I never cleaned it until I was done. If it had malfed from being dirty (as opposed to to dry) in so few rounds, I would consider it defective. I've done similar with a 1911 (A Yam 10-8 package on a Springfield) and a Wilson KZ-9. Same analysis.
During the Great Southeastern Asia Games, the US Army conducted some experiments - actually, it wasn't supposed to be an experiment, it was the introduction of the M16 and it didn't go so well. Some, but certainly not all, of the problems were resolved by the introduction of the M16A1.

I knew several people who preferred an AK to an M16 because the 16 had let them down so many times.

My experience was that a clean weapon still occasionally malfunctioned, just not as often as a not-clean weapon. The Army's recommendation, and our common practice, was basically to clean continuously - not just after firing, but any dust, mud or crud of any type.

I'm told that later models were/are less problematic. I don't know if that is true as I've been a little turned off by them and haven't picked one up since 1974, but the cleaning habit remains. I've never had a problem with over cleaning of any weapon. I don't know how dirty my 3d Gens would have to get to malfunction, but I'm not anxious to find out.

YMMV
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Old 06-17-2013, 09:01 AM
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My question to everyone is how often do you dechamber that round? And when you dechamber round What do you do with round to avoid setback. Do u put it back on top of mag or cycle ammo in mag or what?
If you're in the habit of constantly loading and unloading your pistol, keep a micrometer handy and inspect the round before using it again. Don't forget to check the rim. Some extractors do quite a bit of damage to the rim and could cause feeding problems if the round is re-used.
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Old 06-17-2013, 09:08 AM
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I almost never un chamber. Only when at the range to use fmj and sometimes at work when i have to go somewhere where a gun is prohibited. I dont want to leave a loaded gun laying around. I field strip it (glock) and hide to frame, slide, mag & ammo in different places.

When i chamber i use the next round in the mag and to off the mag with the original chambered round

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Old 06-17-2013, 09:31 AM
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Quote:
Quote:
Originally Posted by miles71
Carry gun is different than my carry most of the time, I unload it everything I get home and put tin the safe. I inspect the chamber round and if it seems good it stays the chamber round. Once issues on the rim are present it gets shoot of at the range, I have had some really buggered up rounds fire just fine. Yes, I carry one in the chamber in the 4013.

"Bump n the night" gun is different. Nothing in the chamber but a full mag. I want to be awake enough to chamber a round before I decide I need to shoot. If someone is that far in my house,past the k9 alarm system, to the point I need to be quick draw McGraw I am I other trouble. Also something to be said about hearing that 4566 slide getting cycled nice and loud and obvious.

No matter what, be prepared my friends.
TD
Your "noise" will do nothing but let them know exactly where you are. To each their own. But I will never be caught without one in the chamber. And if God forbid my wife gets to my gun first, the last thing I want is for her to have to chamber a round. YMMV
I don't think someone is entering my house to be in a shoot out, prob looming for something to steal. Also, I bet these thieves are not trained tactical teams. My main goal is to get them out of my house and keep my family safe, not to sneak up on them. My wife is more than capable of chambering a round.

Hearing a slide rack is different than seeng me as well. As with most things, to each his own.
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Old 06-17-2013, 10:11 AM
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I have never paid much attention to which rounds have been chambered before and which are fresh.

I realize bullet setback can occur because I have recently read about it here.

I just never considered it.

Is it really something we all should think about or is it a fluke?

I have chambered and removed ammo from a couple of my semi-autos and I have noticed no set-back changes.

Is the problem prevalent in certain guns or with certain ammo?

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Old 06-17-2013, 11:30 AM
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Newbie here... what is setback- and the ramifications?? My previous gun experience was with match weapons which were normally kept unloaded- loaded & fired on the range only. Only recently getting into issues of carry weapons, and the issue of using the same gun for home defense/concealed carry/range use. Trying to think through these combinations of use smartly.
Wes
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Old 06-17-2013, 12:39 PM
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Newbie here... what is setback- and the ramifications?? My previous gun experience was with match weapons which were normally kept unloaded- loaded & fired on the range only. Only recently getting into issues of carry weapons, and the issue of using the same gun for home defense/concealed carry/range use. Trying to think through these combinations of use smartly.
Wes
Setback refers to the bullet being "pressed" furthur into the casing due to the repeated chambering of the same round. This increases the pressure/compression of the powder, which, in some peoples eyes presents a danger. Hornady even addresses the issue in their Critical Defense and Critical Duty ammunition, by putting cerations in the jacket to prevent setback.
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Old 06-17-2013, 04:23 PM
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During the Great Southeastern Asia Games, the US Army conducted some experiments - actually, it wasn't supposed to be an experiment, it was the introduction of the M16 and it didn't go so well. Some, but certainly not all, of the problems were resolved by the introduction of the M16A1.

My experience was that a clean weapon still occasionally malfunctioned, just not as often as a not-clean weapon. The Army's recommendation, and our common practice, was basically to clean continuously - not just after firing, but any dust, mud or crud of any type.

YMMV
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With that experience it would be surprising if you did not have that response. However, we are several generations of successor versions of the AR platform later, the improperly loaded (wrong type of propellant) ammo is long gone from most stockpiles), and we are untold numbers of gnerational improvements in lube later.

One of my friends and mentors did his time in the same test environment, and then a full career in LE and the Corps. He has seen untold millions of rounds go downrange from AR platforms, shot them to catestrophic failure, etc. Another savvy guy (Dean Caputo) has a similar experience level - and they both say the same about cleaning.

I got the same silliness about cleaning my pistol in the academy. It should have gone the whole period on just lube; that was maybe a couple thousand rounds.
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Old 06-17-2013, 05:31 PM
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Every time I unchamber a round it goes down in the magazine a few bullets. I double check them before putting them back in.

I clean my gun every time I shoot it (I try to shoot once a month).. I also think not cleaning what your carrying around because it SHOULD fire 500000000+ rounds before a failure is silly.

Having a clean fire arm is one part (of a very crazy equation) that YOU can control. Cleaning also makes your more familiar with the gun.

And I personally just like taking things apart and putting them back together.
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Old 06-17-2013, 10:05 PM
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I remove all six/7 from the cylinder every couple days when I wipe the firearm down. I carry a revolver.
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Old 06-18-2013, 01:40 AM
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What is bullet setback?
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Old 06-18-2013, 07:56 AM
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What is bullet setback?
See post #24
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Old 06-18-2013, 09:33 AM
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Default What about Free-Travel clearance

So if setback is caused by factors such as the nose of the round running up the ramp as the slide pushes the round into the chamber - what about any kinetic effects on the projectile as the case mouth hits the end of the chamber and nothing but the barrel is front of the bullet? Might there be enough kinetic energy to cause the bullet to move forward in the case? Or would the base of the projectile hit the lands and grooves in the barrel also contributing to possible setback?

the pic is not from a handgun - but has lots of info that might be relevant here


So far the only times I have removed and reused an unfired round was during function testing and some cleaning/adjusting - and while I have kept loaded magazines in the firearms in my bedside safe - I have not been keeping a round chambered - that may change in a couple days when I get my concealed carry permit. Still thinking through the options - my most likely carry weapon for now will be a Bodyguard 380 which has a slide lock safety - so I am thinking either loaded chamber safety on - or unloaded chamber safety off - either way only one step to be ready to fire. Might change after getting comfortable with carry method (IWB, appendix, etc). The M&P 45 is a bit bulky for concealed - also looking at possible 9mm compact options.
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Old 06-18-2013, 10:42 AM
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So if setback is caused by factors such as the nose of the round running up the ramp as the slide pushes the round into the chamber - what about any kinetic effects on the projectile as the case mouth hits the end of the chamber and nothing but the barrel is front of the bullet?
Never heard of anything like this in a pistol. I doubt there is enough inertia at work to pull a bullet from a cartridge as the pistol's slide returns to battery.

I am from the school that tries not to re-use ammo that has been cycled into the chamber and then extracted later. I also agree with the poster who said the gun is designed to load a cartridge from the magazine, not "snap" the extractor over the rim of a cartridge that has been dropped into the chamber.

Using previously chambered rounds for range practice still presents the same danger of setback and an over-pressure incident, it is just present in a less threatening environment. Since I hate to tear down really expensive ammo, my rule of thumb is to fire the cartridge at the range only if it has been previously chambered once. If it has been chambered twice, it gets torn or saved for firing in revolvers (9mm and .45) - further proof of my inherent cheapness.
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Old 06-18-2013, 03:45 PM
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After reading these responses I became concerned about set back. I rechamber the same round vArious times since I unload after carrying. I have a 40 cal fed HST that has been rechambered prob. 20-30 times. I measured the round and there is NO setback at all. I did notice a little bit of a chewed up rim on the round, which will cause it to be fired next time at the range, but nothing else at all noticeable.

Do I just have a great round? Not sure i see the issue

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Old 06-18-2013, 04:00 PM
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Do I just have a great round? Not sure i see the issue
It's not a problem until you have a problem. I wouldn't do that, especially with a .40SW, but use your own judgment. There is no black/white answer, but remember, as Dr. Schuler used to say, "Bad things DO happen to good people." Is one round worth more than your safety? Compare the cost of a box of ammunition to a new gun, or repair work on the fingers of your gun hand.

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Old 06-18-2013, 04:05 PM
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I carry my weapon for self defense, not for the "im cool" factor. In this case my weapon is always hidden and always carried hot. When a threat presents itself, i want to be able to eliminate the threat as soon as possible. If its his life or mine, i dont want to me the one chambering a round while he's the one pulling the trigger or pulling his knife from my throat.

Also, very rarely do i unchamber the live round. Of course i do when cleaning my weapon as any properly trained person should. But other then that, i dont play with my carry weapon and I dont show it to all my buddies. There should be no reason for me to have to unchamber my weapon for anything besides the usual cleaning. I dont have kids running around my house (me and the ole lady are adults). 99% of the time where my weapon goes, it goes with a chambered round.
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Old 06-18-2013, 09:46 PM
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What are the signs of set back? What should I be looking for in a potential unsafe round?
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Old 06-18-2013, 10:01 PM
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What are the signs of set back? What should I be looking for in a potential unsafe round?
TD
Measure the bullets. Some have groves to prevent setback (horanday critical defense like stated above) If the groove you normally see is gone the bullet is set back.

Just don't rechamber the same bullet over and over again and all should be well.
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Old 06-20-2013, 12:53 AM
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Maybe I am missing the point. Once a month I head to the range. I empty the mag that has been loaded in my weapon for the past month. I fire all 10 rounds to empty the mag. Then I proceed to use practice rounds. I am building my confidence each month that my loaded weapon will actually fire, even after being carried unused for several weeks.

M&P 40c. Speer gold dot hollow points (180 gr).

Marcus
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Old 06-20-2013, 07:47 AM
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Maybe I am missing the point. Once a month I head to the range. I empty the mag that has been loaded in my weapon for the past month. I fire all 10 rounds to empty the mag. Then I proceed to use practice rounds. I am building my confidence each month that my loaded weapon will actually fire, even after being carried unused for several weeks.

M&P 40c. Speer gold dot hollow points (180 gr).

Marcus
No, youre not missing the point but you dont have to empty the mag once a month. FMJ is just as good to make sure your weapon functions. I empty my once-twice a year. Especially now when good defensive rounds are hard to come by. I too carry Speer Gold Dot 124gr +p 9mm

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Old 06-20-2013, 08:01 AM
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Once you have established that a particular round feeds well in your firearm there is no "practical" need for emptying your mag every month.
Ammo will not "go bad" (under normal circumstances), nor change its ability to feed.
I just fired an 18 year old box of 9mm through my handgun...fired just as well as when it was new!
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Old 06-20-2013, 01:06 PM
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Has anyone taken a micrometer and measured a new round, then chambered and rechambered that same round a couple of dozen times and then remeasured the round to see how much, if any, bullet setback there really is?

Would make an interesting experiment and would put to rest this argument/discussion.
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Old 06-20-2013, 09:55 PM
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I've seen that reported somewhere, but I can't recall for sure where. It was a couple of years ago. I suspect it was on the 10-8forums, which are closed up now.
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Old 06-25-2013, 04:08 PM
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Different rounds, different guns, different calibers, and assorted other variables all play into the issue. Some rounds are capable of being chambered over and over without any trouble, others may suffer setback with only 2 or three cycles. It really doesn't take that much time and trouble to look at a round and compare it to a factory fresh round and see if there are any obvious problems.
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Old 06-25-2013, 05:04 PM
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Originally Posted by Retired LTC, USAR View Post
Has anyone taken a micrometer and measured a new round, then chambered and rechambered that same round a couple of dozen times and then remeasured the round to see how much, if any, bullet setback there really is?

Would make an interesting experiment and would put to rest this argument/discussion.
I did just this.
I rechambered a Speer Gold Dot 230 grn .45, a Win PDX1 230 grain, and a reloaded 230 grain LRN 10 times each, measuring each beforehand.

The reload setback .1 inch, which I expected with used brass. The Gold Dot also set back .1 inch, which was a bit surprising. The PDX1 didn't budge.

All were run thru my Glock 30, so it depends on the manufacturer, I suppose. I don't concern myself over .1 inch of setback, being more concerned with damaged cases or bullets.
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Old 06-25-2013, 07:49 PM
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If you really mean 0.1" (one-tenth of an inch), that is quite a lot, even for a low pressure round like the .45 Auto. For a .40SW, that could really become exciting!

I don't think one can generalize about this problem all that much by testing a few rounds in a few guns. There are just too many variables. Very similar to trying to decide which .357 Magnum round you trust in your 340PD or 360PD. It is either something you are comfortable with doing with your gun and ammunition or you are not.

My right hand and eyesight are pretty darned valuable to me, and some of my pistols obviously chamber the round with a degree of speed and violence that causes me to think bad things could happen. For the small expense involved, I would rather just not take the chance.
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Old 06-25-2013, 08:14 PM
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I use Gold Dots and emailed them asking about bullet set back and this is what they replied with. This is not recent, it was about a year ago.

What i emailed them " I use your 9mm 124gr +P ammo and was wondering after how many times of recycling the same bullet would setback become a problem? Thanks Bryan P."

Their response " Bryan, I would not recommend re-chambering the same cartridge more than four or five times. At that point the hoop strength of the case mouth can be compromised causing setback.

Austin @ CCI/Speer"

So me thinking that they are playing it safe with 4 to 5 i will rechammber mine 5 times and rechamber at 6 to shoot it as practice ammo. i put a little mark on mine with a black Sharpi to keep count. Some one on here told me thats what they do so i liked the idea and mark mine with a sharpi too.
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Old 06-25-2013, 08:52 PM
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The SD ammo in my pistol gets sent down the range at the beginning of each range visit. Then use range ammo for the remainder of the session. Later, after cleaning, it gets loaded up with fresh SD ammo.
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Old 06-26-2013, 05:17 AM
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The SD ammo in my pistol gets sent down the range at the beginning of each range visit. Then use range ammo for the remainder of the session. Later, after cleaning, it gets loaded up with fresh SD ammo.
Wish i had the money to do that!
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Old 06-26-2013, 05:08 PM
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No matter how you measure it, that will always be cheaper than trying to replace your hand, eye, etc.
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Old 06-26-2013, 06:59 PM
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Quote:
Originally Posted by SMSgt View Post
I did just this.
I rechambered a Speer Gold Dot 230 grn .45, a Win PDX1 230 grain, and a reloaded 230 grain LRN 10 times each, measuring each beforehand.

The reload setback .1 inch, which I expected with used brass. The Gold Dot also set back .1 inch, which was a bit surprising. The PDX1 didn't budge.

All were run thru my Glock 30, so it depends on the manufacturer, I suppose. I don't concern myself over .1 inch of setback, being more concerned with damaged cases or bullets.
.1" is enough to be less than the min COL, hopefully you left a 0 out.
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