Muzzle brake to decrease muzzle rise. - M14 Forum

M14 Forum


Muzzle brake to decrease muzzle rise.

This is a discussion on Muzzle brake to decrease muzzle rise. within the Accuracy forums, part of the M14 M1A Forum category; I shoot off a bipod mounted on my "Loaded" M1A and it shoots great but the muzzle rise with each shot requires me to take ...


Go Back   M14 Forum > M14 M1A Forum > Accuracy

2Thanks
Reply
 
LinkBack Moderator Tools Display Modes

Old March 6th, 2017, 06:10 AM   #1
Snappin In
 
Join Date: Feb 2013
Location: Florida
Posts: 31
Muzzle brake to decrease muzzle rise.

I shoot off a bipod mounted on my "Loaded" M1A and it shoots great but the muzzle rise with each shot requires me to take some time to settle back in and regain my sight picture. I was wondering if I should get the Smith Enterprise Muzzle brake to lessen the rise? I'm shooting the American Eagle 7.62X51 ammo made for M1A's with the 168gr bullet. I plan on switching out my factory stock for one of those Promag precision M1A stocks because I need a cheek piece so I make a better cheek weld for my scope plus I like all the adjustments. Should I change the stock first and see if I really need the Smith brake?

This is the Smith brake below.

rosco is offline  
Remove Ads
Old March 6th, 2017, 06:31 AM   #2
Dodgin' The Reaper
 
danthman114's Avatar
 
Join Date: May 2012
Location: Yuma, Az
Posts: 5,245
im afraid this wont help. you will always have bounce when using a bipod. if it bounces left or right you need to adjust your body left or right...

Thanks from ConRich and PublicSafety400
danthman114 is offline  
Old March 6th, 2017, 06:59 AM   #3
Snappin In
 
Join Date: Feb 2013
Location: Florida
Posts: 31
Quote:
Originally Posted by danthman114 View Post
im afraid this wont help. you will always have bounce when using a bipod. if it bounces left or right you need to adjust your body left or right...
The Muzzle just goes up -- may be part recoil and muzzle rise. I'll change out the stock and go from there.

rosco is offline  
 
Old March 6th, 2017, 07:00 AM   #4
Lifer
 
Join Date: Oct 2008
Location: NJ
Posts: 4,806

Awards Showcase

The compensator part (top holes) of the SEI brake are very effective in controlling muzzle rise. I prefer the NM version. It is longer and hides the flash better.

If you are using a bipod on wood or concrete, put a piece of carpet under it.

KurtC is offline  
Old March 6th, 2017, 07:16 AM   #5
Scout Sniper
 
ConRich's Avatar
 
Join Date: Mar 2006
Location: Maine
Posts: 821
Thumbs up SEI USCG Muzzle Break

I have been using the SEI USCG Muzzle break for many years, it does reduce muzzle jump.

Rich

ConRich is offline  
Old March 6th, 2017, 08:44 AM   #6
Dodgin' The Reaper
 
danthman114's Avatar
 
Join Date: May 2012
Location: Yuma, Az
Posts: 5,245
Quote:
Originally Posted by rosco View Post
The Muzzle just goes up -- may be part recoil and muzzle rise. I'll change out the stock and go from there.
This is correct but the bipod adds to it. You'll see on other threads something about preloading the bipod. Try prone with no bipod with a loop sling... Or rest your rifle on something soft like a back pack or something

danthman114 is offline  
Old March 6th, 2017, 08:58 AM   #7
Old Salt
 
NATOBTHP's Avatar
 
Join Date: Dec 2010
Location: USA
Posts: 1,271
My M14 with a Smith USCG Brake and a GG&G bipod while firing off a bench pushes straight back never lifting the legs

NATOBTHP is offline  
Old March 6th, 2017, 11:50 AM   #8
Lifer
 
Capona's Avatar
 
Join Date: Jul 2013
Location: Illinois
Posts: 2,990
I use several breaks, this being one of them. They all work well to reduce muzzle rise.

Capona is offline  
Old March 6th, 2017, 04:18 PM   #9
Lifer
 
Join Date: Jul 2007
Location: Canada
Posts: 2,379
When I designed the Short Muzzle Brake for M14.CA, I started with experience at THREADING dozens of different types of muzzle devices on to shortened M14 barrels, cut, crowned, and threaded to AR 15 type 1/2" x 28 tpi threads. AND, shooting these various devices in fast, multiple shot type scenarios, to determine which gave the best COMPROMISE between controlling muzzle flip, recoil, flash, and blast.

Any muzzle device can only go so far towards eliminating these often mutually contradictory characteristics. The blend of these often opposing traits, is what gives a particular muzzle device a certain "feel". With the M14.CA short comp, I got the "feel" I liked, and a short barreled M14 fitted with this device , shooting full power 7.62 NATO ammo, "feels" similar to shooting an SKS firing 7.62x39 RUSSIAN ammo. The reduction in recoil and muzzle flip is significant, and the increase in blast and flash is also significant. NO FREE LUNCH IN PHYSICS ... there must be some trade offs.

THEORETICALLY, a shortened barrel cut between 18.5"and 20", will.have more RESIDUAL gas pressure at the muzzle than a 22" barrel, and I optimised the ports / gas flow for these shorter barrels. However, any muzzle device, short of tying an anvil on to the barrel, will have only limited success. We tested various port shapes and sizes for muzzle rise, resting the forend on a padded block, forend UNSUPPORTED and unemcumbered, with graph paper behind and a video camera to measure rise. Not overly complicated or sophisticated, but this got us in the ball park. The muzzle rise was reduced "significantly".

BUT,
EVEN GREATER REDUCTION IN MUZZLE FLIP was noticed by changing the stock to a more modern, ergonomically more efficient design, with the butt moved upwards to give a straight line thrust back directly from the bore, with no leverage "vector force" trying to rotate the rifle upwards. And adding a pistol grip, while not directly changing the thrust line, with a proper firm grip, could DIVERT some of the recoil forces into the grip hand, for improved CONTROL.

In my experiments, a properly designed stock, with pistol grip and straight line thrust, provides more recoil control improvement than any muzzle device ( short of an anvil).

There are some very good reasons why the AR 10 has less felt recoil and muzzle flip than a conventionally stocked M14. AND, if you are shooting rapidly, in other positions than off the bench or bipod, this reduction in recoil and muzzle flip, and improved control for fast follow up shots, is even more obvious.

PS: If you really want to get kinky, the M14.CA muzzle device is a two part design, so with the sight tower set to ERTICAL, the ports can be rotated slightly to offset the usual tendency for fast follow up shots from a right handed shooter to string "high AND RIGHT" . Tightens up.your double taps. But that is probably a bit more than any normal person ( except the HI SPEED/ LOW DRAG TYPES ) really needs.

PPS: EVEN BETTER, use 110 or 125 gr bullets, perhaps at lower velocities.

Combining all these tricks and tweaks can result in an M14 that is as fast to shoot as an AR 15, although it will still be pounds heavier. BUT, you can still shoot FULL POWER .308 WIN/7.62 NATO if required.
BTDT
which is why I think the M14 is possibly the most VERSATILE rifle ...
EVER!

Lazerus2000 is offline  
Old March 6th, 2017, 08:59 PM   #10
Snappin In
 
Not an m1A's Avatar
 
Join Date: Jan 2017
Location: Central Texas
Posts: 32
Quote:
Originally Posted by NATOBTHP View Post
My M14 with a Smith USCG Brake and a GG&G bipod while firing off a bench pushes straight back never lifting the legs
+1 on the uscg brake

Not an m1A is offline  
Old March 7th, 2017, 03:49 AM   #11
Platoon Sergeant
 
Redneck Yankee's Avatar
 
Join Date: Feb 2017
Location: Ridgefield, Connecticut
Posts: 316
I use the SE USCG brake on my A&G carbon fiber conventional stocked M!A and can attest to its effectiveness.
PS- M14=no double taps required.

Redneck Yankee is offline  
Old March 7th, 2017, 05:03 AM   #12
Snappin In
 
Join Date: Feb 2013
Location: Florida
Posts: 31
Thanks to everybody for the info on the brake. I think I'll change the stock out first and then do the brake. I need the stock so the whole thing fits me better and I'll try to find some good 7.62X51 ammo that uses a lighter bullet like in 150gr range. The recoil on the 168gr American Eagle 7.62X51 is not bad at all but the muzzle rise is a pain. maybe I should try not using the bipod and go with a rest with some padding on it.

rosco is offline  
Old March 7th, 2017, 05:28 PM   #13
Automatic Rifleman
 
Join Date: Sep 2016
Location: Texas
Posts: 131
Try preloading the bipod. You place forward pressure on the rifle so that the bipod is leaning forward against the pressure. That will help but won't replace a brake.

PublicSafety400 is offline  
Old March 7th, 2017, 05:45 PM   #14
Designated Marksman
 
SteedGun's Avatar
 
Join Date: Oct 2013
Location: Utah
Posts: 662
If you use a muzzle brake don't shoot the stupid gun without ear protection. It hurts like hell. Don't ask me how I know this...

SteedGun is offline  
Old March 7th, 2017, 07:03 PM   #15
Platoon Sergeant
 
Join Date: Jan 2015
Location: Shelby Township, Michigan
Posts: 353
I like muzzle brakes because they piss off the shooters to the right and left of you. I've had people move when I shoot my AR. I always ask is my 22 too loud?

2012 C14 is offline  
Reply

  M14 Forum > M14 M1A Forum > Accuracy

Moderator Tools
Display Modes


Similar M14 Forum Discussions
Thread Thread Starter Forum Replies Last Post
SEI 6.8mm/7.62mm Muzzle Brake 5/8x24 DC and A2 style birdcage jmill4279 SPF 2 December 7th, 2013 09:23 AM
Smith Enterprises muzzle brake causes malfunctions? animalmother The M14 20 August 15th, 2011 12:17 PM
Clark/Miculek muzzle brake, Fabian Bros, any unusual M1A/M14 muzzle brake 2336USMC Want To Buy 0 November 25th, 2010 10:13 AM
Other than an SEI brake, what else is out there? urbanM14 The M14 13 September 22nd, 2007 10:18 AM
Question: Inside diameter of .30 cal Smith Muzzle Brake? OneBarfly The M14 3 September 20th, 2004 07:55 AM



Top Gun Sites Top Sites List