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Old 03-28-2017, 09:22 AM
Thomasino Thomasino is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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Default Does anybody trim their pistol brass?

Just wondering how many people actually trim their pistol brass. I bought an RCBS hand trimmer but haven't used it in about 4 years. I mainly used it for my rifle brass, but haven't really needed to lately because the only rifle brass I reload is .223 ammo and just check it with a Lyman case gauge and it never seems to have a size problem. As far as pistol brass goes, I generally stick with revolvers for reloading and the rimmed case doesn't need any trimming in my opinion. Some Reloaders I suppose get very particular and trim everything to specs, just wondering what most people do as far as trimming goes?

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Old 03-28-2017, 09:22 AM
Mike, SC Hunter Mike, SC Hunter is offline
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No, not ever..........
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Old 03-28-2017, 09:27 AM
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Do not trim any more unless there is a specific cause to make me do so.
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Old 03-28-2017, 09:31 AM
peachhead peachhead is offline
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I don't. I thought about it the other night but then I looked down at the 700 cases I was working on and I said nah.

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Old 03-28-2017, 09:45 AM
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From what I have gathered in the past only 38 special auto shooters do this sometimes for their 52s.

Last edited by 4barrel; 03-28-2017 at 09:47 AM.
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Old 03-28-2017, 10:17 AM
Ballistic147 Ballistic147 is offline
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I trim all my once fired 223/5.56 brass as I find some of it to be longer than spec. I also trim all 38 Special, 357 Mag and 44 Mag once fired brass. I've seen it vary as much as .010" between the same headstamps. Trimming everything to the same length gives me a more precise crimp, especially on the revolver rounds where I'm using a roll crimp. On my full house 357's and 44's I use a heavy roll crimp and a .010" longer case is enough to cause problems by crushing the case. Once they're all trimmed it will be quite a few reloads before they need to be trimmed again.

I've never trimmed any of my semi auto pistol rounds that get a light taper crimp and don't have any problems. Actually those rounds don't get a true crimp but just removing the flare.
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Old 03-28-2017, 11:03 AM
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never found advantage or need in any pistol caliber I've used
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Old 03-28-2017, 11:11 AM
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I did when I started reloading, but not in last thirty years.
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Old 03-28-2017, 11:24 AM
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TOTAL waste of MY time....you can do as you see fit.....

Randy
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Old 03-28-2017, 11:52 AM
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I do, and I only do it once every 10 reloadings, if the brass is still around by then. Having brass that is the same length means I can seat and crimp in one operation, and the crimp is very consistent and you know what that means. With my reloads, I also very rarely experience a failure to fire, like less than one in 10,000. Did I mention I also clean my primer pockets out real good.
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Old 03-28-2017, 11:53 AM
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never trim straight wall pistol cases. Only trim rifle brass.
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Old 03-28-2017, 11:58 AM
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I load 9mm, 38 spl, 357 mag, 44 mag and 45 AR.
Have never trimmed a handgun case.
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Old 03-28-2017, 11:59 AM
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Every once in a while I trim some of my .357 brass, usually only after several warm loads have been fired in them. Nothing else seems to grow enough to matter.
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Old 03-28-2017, 12:05 PM
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I never trim pistol brass, only rifle brass. I have been reloading some of the same 44 mag brass for over 30 years without ever trimming it. I only shoot mild loads, I see no reason to hot rod anything.
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Old 03-28-2017, 12:36 PM
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Default Mixed brass....

To make a batch of mixed brass more uniform for better crimping, you can trim them ONCE.
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Old 03-28-2017, 12:57 PM
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Back when revolvers were "King" and I shot on the department pistol team (PPC), I loaded all my own competition ammo. I kept that brass separate and painstakingly kept it all trimmed to length. That was a lifetime ago-sigh :-(. I do trim all my rifle brass, test trimmed 100 pieces of 45ACP once, but saw no noticeable difference; so I don't trim my 9mm, 40 S&W or 45 ACP brass. Since I deprime and wet tumble all my brass, I don't have to clean primer pockets any more and my presses stay cleaner too :-)
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Old 03-28-2017, 01:02 PM
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Quote:
Originally Posted by Ballistic147 View Post
I trim all my once fired 223/5.56 brass as I find some of it to be longer than spec. I also trim all 38 Special, 357 Mag and 44 Mag once fired brass. I've seen it vary as much as .010" between the same headstamps. Trimming everything to the same length gives me a more precise crimp, especially on the revolver rounds where I'm using a roll crimp. On my full house 357's and 44's I use a heavy roll crimp and a .010" longer case is enough to cause problems by crushing the case. Once they're all trimmed it will be quite a few reloads before they need to be trimmed again.

I've never trimmed any of my semi auto pistol rounds that get a light taper crimp and don't have any problems. Actually those rounds don't get a true crimp but just removing the flare.
^^^Exactly^^^
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Old 03-28-2017, 01:41 PM
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Default Not all, but certainly some...

9mm and 45ACP that I load on Dillon 1050s I never trim. They split from wear before their length becomes an issue.

However, 38 Special, 357 Magnum, 45 Colt and 500 Linebaugh I do. I load them all on a Bonanza Co-Ax press, trim them to a consistent length with a RCBS Trim Pro and load them very carefully for maximum accuracy. Over the years I've learned never to seat and crimp in the same operation, but rather seat and then crimp in two separate steps. If the case length is not consistent, then the crimp is not consistent which DRAMATICALLY and negatively impacts accuracy.

The only exception to this is my 45 Colt practice ammo that I shoot in my 25-5s. I use Laser Cast 250 grain RN FP. Because of this bullet's generous crimp groove, I can get a very consistent OAL and crimp in a single step, IF the cases are all of a consistent length. The accuracy of this load is uniformily excellent in every 45 Colt revolver I own.

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Old 03-28-2017, 01:54 PM
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on .454 .445 & .44 to lesser extent , some jacketed bullets do not have a real deep cannelure. To get a heavy crimp requires a consistent case length.

The 40 to 60k psi cartridges do see same case length growth. I would think the guys reloading near max load 460's with multiple reloadings would see this too.
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Old 03-28-2017, 02:07 PM
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Technically , I guess you should do it once , to get all those revolver roll crimps consistent . And it would be good to have all your semi-auto cases the same length. But I sorta view trimming cases in the same way I do flossing my teeth. I should do it....But I don't.
One day I'll get a round tuitt and do it.
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Old 03-28-2017, 02:08 PM
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Revolver cases for consistent crimping. Pistol cases, no.
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Old 03-28-2017, 02:18 PM
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I do not and have not in 40 years.
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Old 03-28-2017, 02:31 PM
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I trim 45 ACP, but only because I roll crimp it in revolvers
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Old 03-28-2017, 03:00 PM
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Back in my reloading days, I found firing .357s out of several different makes of revolvers- S&W, Dan Wesson, Colt , Ruger-required regular trimming.
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Old 03-28-2017, 03:52 PM
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No never... a waste of my time...
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Old 03-28-2017, 07:45 PM
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Quote:
Thomasino wrote:
Just wondering how many people actually trim their pistol brass.
For .25ACP, 9mm and .45ACP, no.

I do trim .38 Special if I plan to crimp the bullet because having all the brass the same length makes for more consistent crimps.
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Old 03-28-2017, 07:45 PM
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Waste of time.
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Old 03-28-2017, 07:47 PM
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Never have, never will.
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Old 03-29-2017, 03:58 AM
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I'm in the "trim revolver brass for more consistent crimps" camp myself. I've seen 357 and 44 Mag brass grow in length over the course of several reloadings and the growth isn't consistent between all cases in a certain lot of brass. So after every 5-10 loadings I will run them through my dial caliper after cleaning and resizing to see what variation I have in OAL, as well as checking the brass thoroughly for any damage. If it varies more than 5-10 thousandths I will trim the whole lot back to the trim to length.

For autoloader cases, I've never seen that brass grow or shrink significantly and never even check it except for looking for damaged brass.
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Old 03-29-2017, 04:18 AM
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As stated in ne of the very first posts, the only time I have ever trimmed was specifically for my Model 52's and Colt NM MKIII wadcutter guns. Otherwise in 18 years of reloading no pistol brass has ever been trimmed.

I will say this though, some of my .50AE brass is reaching max lengths after several firings. But even that will get tossed b4 I trim since I have so much and my time is more valuable
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Old 03-29-2017, 06:03 AM
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NOPE! Don't even own a trimmer. I have loaded Brass so many times I've lost count - never have any FTF. On high powered Rifle cases it's a different story though.

Most of my reloads are on the lighter side. I see not need to beat up the gun or myself (I do shoot often) just to punch holes in paper. I do practice with stiff carry loads when shooting my EDC, but for target shooting, lighter loads are all I need. It is very easy on the Brass too and it never needs to be trimmed.
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Old 03-29-2017, 06:32 AM
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If you have not jammed a case mouth in a revolver cylinder, you are fortunate. Back in my youth, I had stuck cases in 357 and 44 mag revolvers that were loaded to the max. (OH! to have young wrists and eyes again).

After those experiences, I trim all my 357 and 44 mag brass once in the fired state to 0.015" less than minimum case length. If the trimming is done before resizing, the cutter pilot turns easily. When the case is resized, the length is at or near minimum. The case will crack and fail before it needs trimming again. This also makes for consistent crimps.

I don't trim semi-auto calibers, and do trim all my bottle neck rifle brass.
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Old 03-29-2017, 08:06 AM
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Joining the chorus of "no", I've haven't rimmed handgun cases ever. I do have a case trimmer bought when I was shooting a .243 quite a bit, but haven't used it on other calibers.
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Old 03-29-2017, 09:32 AM
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I don't and at this point I doubt that anyone could convince me that it would be a good idea.
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Old 03-29-2017, 09:40 AM
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Quote:
Originally Posted by Thomasino View Post
Just wondering how many people actually trim their pistol brass. I bought an RCBS hand trimmer but haven't used it in about 4 years. I mainly used it for my rifle brass, but haven't really needed to lately because the only rifle brass I reload is .223 ammo and just check it with a Lyman case gauge and it never seems to have a size problem. As far as pistol brass goes, I generally stick with revolvers for reloading and the rimmed case doesn't need any trimming in my opinion. Some Reloaders I suppose get very particular and trim everything to specs, just wondering what most people do as far as trimming goes?

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Old 03-29-2017, 09:44 AM
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Quote:
Originally Posted by rwsmith View Post
To make a batch of mixed brass more uniform for better crimping, you can trim them ONCE.

+1 good advice. I trim for batch uniformity both my 44 mag (Desert Eagle) and my 460 S&W mag. Both require stout crimps.
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Old 03-29-2017, 01:14 PM
Thomasino Thomasino is offline
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I am just a casual weekly shooter and don't mind the subtle length differences between my pistol brass, and I roll crimp most of it. I don't shoot competitively.

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Old 03-30-2017, 09:22 PM
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Most brass revolver and pistol brass (especially for semi-auto) shrink rather than grow. I use Starline brass and it starts out shorter than minimum and never seems to get any longer.

My gunsmith and I argue but I really, really belief the 1911 does not headspace. It is held by the extractor.
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Old 03-31-2017, 07:30 PM
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I do my 357mag and 44mag brass, as well as my 38spl and 44spl brass. They interchange between carbines and revolvers, and I prefer the crimp to be perfect on each round. I don't trim my semiauto pistol brass, never seem so to stay around long enough for me to bother. My rifle brass will get trimmed, but that's for my OCD with hunting handloads.
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Old 04-01-2017, 11:37 AM
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Default Used to

I have trimmers for most calibers the revolver isn't
fussy about oa length the autos are but I just measure oal
on every 30 to 40 rounds and make sure oal is on the short side
never had any problems except one time I loaded My Sig .357
with round nose 115 gr bullets well not thinking they would be longer than the flat nose 124 gr I did they just stuck in the magazine I repressed them and were fine after
The .308's and .223 's I use a case gauge on everyone
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Old 04-02-2017, 10:16 PM
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Lightbulb Yes, when needed.

Same length on a reloaded batch equals predictable results. If you roll crimp and have brass of variable length you will get erratic velocity results. Can also damage brass in crimp process. Those who blow off trimming as unnecessary in my view do not have the temperament of a reloader. Quick and dirty without regards to results or reason is out of place here. Size and measure a batch of cases. If they are within .005 of each other, you can get away without trimming. Recheck length in your batch every 3 firings. Remember, the longer they grow the more you must back off your crimp die. Once trimmed to recommended trim length, your batch may be good fore the life of the case, just do the .005 check every 3 firings. Trim as required. Erratic lengrh can also affect taper crimping. For any given die setting, the longer the case the tighter it will crimp, eventually creasing the bullet. Those who dont have the patience to do it right will not be able to explain why performance or accuracy issues occur. This is because they really dont know what they have. Sorry for the rant, this is only my opinion, would like for you to enjoy the hobby and take pride in your results.
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Old 04-02-2017, 10:48 PM
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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No argument with what you said. When I load for 100% accuracy then yep I will trim. If I were swapping out revolver/rifle loads yep i would trim. When I load up 1000 38spl loads strictly for plinking, cans, punching paper, no. Can I kill a snake with it at 10 yards? You bet. My hunting loads get trimmed. All depends on what I'm doing.

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Old 04-05-2017, 07:20 PM
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Wally West Wally West is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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yes when trying out new powders to get consistent results on the chrony but for target shooting? not really needed but i like to start from the same place with every load.
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Old 04-06-2017, 11:09 AM
Thomasino Thomasino is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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If you trim your brass, what unit do you use to trim with?

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Old 04-06-2017, 12:08 PM
Ballistic147 Ballistic147 is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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I use this one:
Lyman Universal Trimmer with Power Adapter

So far it has worked well. I like the power adapter for larger batches. You can use it with a small drill or if you get creative you can rig it up to work on a drill press. For small batches I just use the hand crank. I've run about 3k 223/5.56 cases through it set up in the drill press and once you get it dialed in it's very accurate. All my cases have come out +/- .001" which is fine for me. Not saying there's not better options but it works good for the money.
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Old 04-06-2017, 05:53 PM
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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Quote:
Originally Posted by rwsmith View Post
To make a batch of mixed brass more uniform for better crimping, you can trim them ONCE.
I need a clarification!
If I only use same headstamp, same number of firings brass per batch, and the fired and resized case lengths vary .....can I get a waiver to trim my brass a second or third time?
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Old 04-06-2017, 06:19 PM
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l trim my brass like l trim my toe nails---When they get too long...
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Old 04-06-2017, 06:31 PM
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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You all gotta remember, progressive presses are hardly conducive to trimming brass, or even measuring after resizing.
For the sake of efficiency, "Close enough" is often the trend.
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Old 04-06-2017, 10:13 PM
BZimm BZimm is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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Well, I'm real new at this and I just finished trimming a bunch of fired 38spl brass that I purchased from a LEO up the road. 300 cases didn't take me that long and honestly I feel a lot better knowing that I have a good starting point for my reloading. I used an original Forster case trimmer without any power assist and once I picked up a rhythm, I kind of enjoyed the quiet time.

A while back I was playing around with some spent cases of my own and I was surprised at the different lengths I found. As I was thinking through the process, and I came to the seating and crimping point, I decided that a consistent case length was best.

Now that I have that length logged in, I'll watch those cases in subsequent reloads, and make decisions from there. I don't own all that many guns, so other variables will be at a minimum. I don't know much, but I know repeatability is key.

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Old 04-07-2017, 07:46 AM
Thomasino Thomasino is offline
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Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass? Does anybody trim their pistol brass?  
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When I buy brass I always get Starline and it comes already sized and the same length. All the crimping seems to be quite similar and the firings all seem to be the same. I never have a problem with case length with the same Starline brass. I'm not a competitive shooter but basically just enjoy target shooting with my friends at the range so minute differences don't make a difference to me anyway.

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