LimaCharlie
US Veteran
They helped a little. People still saw a visible shockwave coming off of me when I shot it. I sold it when the ammo got over $120.00 for a box of twenty.
Lessening felt recoil on a M@P sport
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I wasn't aware that the .223/.556 has any "felt recoil." Perhaps my shoulder is nerve damaged, but the .22 caliber rifles, be they rimfire or centerfire just do not recoil sufficiently to even notice, at least for me.
The .375 H&H, on the other hand, is a different story.
The .375 H&H, on the other hand, is a different story.
JaPes
Member
There could be a bunch of different factors both in the specific rifle and specific person to cause an individual to want to find a way to reduce recoil. There's also one more thing to consider, maybe the M&P 15 is a person's first center fire rifle. Without trigger time on a center fire rifles, the OP may not have any context in which to frame their shooting experience.
For example when I first started shooting semi-auto pistols any other caliber than 9mm felt like it was a gigantic step up in perceived recoil. I got my recoil tolerance pushed by shooting a .357 Magnum snubby. It got pushed further by shooting a .44 Mag snubby.
For example when I first started shooting semi-auto pistols any other caliber than 9mm felt like it was a gigantic step up in perceived recoil. I got my recoil tolerance pushed by shooting a .357 Magnum snubby. It got pushed further by shooting a .44 Mag snubby.
Rastoff
US Veteran
The answer to the OP is, no, changing the gas tube won't appreciably reduce felt recoil. If you were to fire the same rounds in two M&P Sport carbines, side by side but configured with a stock tube and an after market one, you might feel a difference. Even if you did, I think it would be unlikely that you'd feel any real difference.
I have heard this same claim a lot in the shotgun realm. A guy will buy a new gun and proclaim, "This thing has no recoil!" This is absolute poppycock. Every gun has recoil and every shooter feels it to some extent. Because I shoot from 10 to 15 thousand rounds of shotgun shells every year, I'm not going to bruise, but someone else might.
Felt recoil depends on three things; mass and speed of the ejecta, mass of the device (gun) and gun fit. The smaller/slower the bullet, the better the fit and the heavier the gun, the less the recoil will be felt. Sorry to say, but the AR doesn't fit anyone all that well.
Should I get into the length of the impulse as well?
This isn't fair to the OP. Everyone feels recoil differently. The fact that there is a mass being sent in one direction bears out that there is some recoil. Maybe y'all have fired many thousands of rounds and the OP has not. Not picking on you Shawn, but the comment that many have made here.
I have heard this same claim a lot in the shotgun realm. A guy will buy a new gun and proclaim, "This thing has no recoil!" This is absolute poppycock. Every gun has recoil and every shooter feels it to some extent. Because I shoot from 10 to 15 thousand rounds of shotgun shells every year, I'm not going to bruise, but someone else might.
Felt recoil depends on three things; mass and speed of the ejecta, mass of the device (gun) and gun fit. The smaller/slower the bullet, the better the fit and the heavier the gun, the less the recoil will be felt. Sorry to say, but the AR doesn't fit anyone all that well.
Should I get into the length of the impulse as well?
Yes, but only marginally. Any added mass will help reduce felt recoil. However, if you're looking at 28lbs of recoil force, how much do you think an 8oz weight will help?
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With reference to the "overgassed" comments. All the rifle length ARs are overgassed by design to ensure reliable function under adverse conditions.
Going to a carbine length gas system jacks the pressure in the bolt carrier up even further (Yes, the gas port is smaller in diameter. This increases the amount of [dwell] time necessary for the pressure to build to the point the system operates, it doesn't change the pressure.). Properly built carbines (of all types) use a different extractor spring and plug than the rifle.
The H series buffers are intended to control the cyclic rate in full auto fire. Yes, you can use them to fine tune the operation of your specific semi-auto weapon should you desire it. It doesn't mean that the lack of them is a defect requiring remediation.
Going to a carbine length gas system jacks the pressure in the bolt carrier up even further (Yes, the gas port is smaller in diameter. This increases the amount of [dwell] time necessary for the pressure to build to the point the system operates, it doesn't change the pressure.). Properly built carbines (of all types) use a different extractor spring and plug than the rifle.
The H series buffers are intended to control the cyclic rate in full auto fire. Yes, you can use them to fine tune the operation of your specific semi-auto weapon should you desire it. It doesn't mean that the lack of them is a defect requiring remediation.
spad124
Member
To the OP,
Rastoff is correct regarding why a shooter feels recoil. Also I agree the AR tends to not fit well. This can be overcome somewhat by making sure you firmly pull the gun into the pocket of your shoulder. Using a sling as a shooting support helps tremendously. Google how to use a "hasty sling".
Rastoff is correct regarding why a shooter feels recoil. Also I agree the AR tends to not fit well. This can be overcome somewhat by making sure you firmly pull the gun into the pocket of your shoulder. Using a sling as a shooting support helps tremendously. Google how to use a "hasty sling".
JaPes
Member
A civilian semi-auto rifle being a tad overgassed is a benefit in my eyes. It makes the rifle compatible with a wider variety of commonly found off the shelf ammo.
Rick_A
Member
Personally, I'll use the heaviest buffer/spring/carrier combo (in that order) that cycles Wolff and TulAmmo reliably.
MasterTech1960
Member
Forgive me if this has been said, but at 6 foot 4 inches tall and 265 lbs. I precive recoil a little different than say my wife who is 125 lbs. Shooting technique is also a big factor. Everyone is different.
gunny4053
US Veteran
Forgive me, but I've fired ARs from my chin and nuts, and I'm still trying to find the perceived recoil that's so much more significant between every 3 year old and middle linebacker in the world. When someone finds it, please point it out.
Jboutfishn
Member
"Yes, but only marginally. Any added mass will help reduce felt recoil. However, if you're looking at 28lbs of recoil force, how much do you think an 8oz weight will help?"
I believe the theory behind a mercury tube is to spread the recoil over a longer period of time. Instead of a sharp slap, the recoil is perceived more as a push.
The burn rate of powder used also affects the perceived recoil. An example of this is with my 416 rem mag. Using BLC-2 powder to achieve 2600 fps with a 350 gr bullet the perceived recoil is much harder than when using Rel 15. I use the term "perceived" because you not only feel it in your shoulder, but the muzzle blast is also different.
I believe the theory behind a mercury tube is to spread the recoil over a longer period of time. Instead of a sharp slap, the recoil is perceived more as a push.
The burn rate of powder used also affects the perceived recoil. An example of this is with my 416 rem mag. Using BLC-2 powder to achieve 2600 fps with a 350 gr bullet the perceived recoil is much harder than when using Rel 15. I use the term "perceived" because you not only feel it in your shoulder, but the muzzle blast is also different.
Rastoff
US Veteran
Burn rate does affect actual recoil impulse, but the difference between powder rates is unlikely to be felt by a normal person. I tested this by giving an unsuspecting shotgun shooter shells that I had loaded. All the shells were loaded with the same powder, but the shooter was told that they were different. As expected, the shooter reported that the shells he was told had a faster burning powder, had more recoil. This was obviously psychosomatic because all the shells were the same.
I'm not saying it's impossible, just very small.
The theory of how a mercury device works is actually twofold. First it adds mass which will absorb some of the recoil. Secondly, that mass is not fixed. The motion does indeed act to attempt to spread the recoil impulse out over time. It has been my experience that the affect on felt recoil is minimal.
I'm not saying it's impossible, just very small.
The theory of how a mercury device works is actually twofold. First it adds mass which will absorb some of the recoil. Secondly, that mass is not fixed. The motion does indeed act to attempt to spread the recoil impulse out over time. It has been my experience that the affect on felt recoil is minimal.
https://www.youtube.com/embed/vwHs4DtQU3I?autoplay=1
Maybe a range session with this would change ones "perceived" recoil?
Maybe a range session with this would change ones "perceived" recoil?
Try sticking a pad on it. I consider mosin nagants light shooting and can fire a box of 50 full house .357s one handed but the ar recoil annoyed me some how. I finally figured out it was the stock
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Back2School
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Funny - I was just going to add my story.
Went to the range with my 10/22 and my mosin. I also wanted to rent and try my first AR. I shot my mosin first. Only about 10 rounds since the range decided I can no longer shoot my surplus ammo and had to use my hollow point hunting rounds.
I switched to the AR and was shocked I felt recoil. All I have ever heard is they have no recoil. I am not saying it was mosin like, but it was a lot more than even my .45 carbine -which isn't much more than my 10/22.
I have shot all kinds of rifles when I was young, and am just getting back into rifles now, but the AR had more recoil than I was expecting.
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