AR Sponsor
Posted: 3/13/2017 5:17:46 PM EDT
 I built a new AR over the winter out of a variety of parts I saw reccomended here quite a bit.
PSA Lower PSA LPK LaRue MBT Aero Upper Ballistic Advantage SS .223 16" bbl BCM 2.0 Break Magpul MOE Grip BCM Charging handle BCM KMR Keymod rail AIM Nitride BCG Group Vortex 2.0 Red Dot Magpul CTR Stock I took the gun out to an indoor range at 25 yds to sight in and get a feel for how she'd do. (Charlotte area sucks for outdoor ranges) The gun grouped great at that distance, but the muzzle would recoil to the left each time it was fired. The muzzle device seems perfectly centered. Any ideas what is going on? |
|
Some muzzle brakes mitigate recoil to the point that you can feel the torsion on the barrel created by the bullet spin as it exits the bore. Some people just accept it, and get used to it. Some people time the muzzle device off a few degrees to counter it.
If you think back to the first time you fired a firearm, especially a handgun, you have probably forgotten how the muzzle seemed to arc around. The more you fired, you just got used to it, and it seemed to go away. You are experiencing that same thing except it may not "go away" because a rifle bullet leaves the barrel with a bit more energy than a handgun. A strong grip and good stance can also reduce the feeling. |
|
Lots of great information out there, hopefully this helps get you started.
https://www.youtube.com/watch?v=pHcRgRab4P4 |
|
Frankly... your photo makes it look like the brake is canted. It could just be the photo... but...
The wrench flats should be 90 degrees to the ground.. or parallel with the stock. Also be sure the bottom, limited cutout, so it doesn't kick up dust while shooting prone.... is .. well, at the bottom |
|
Quoted:
Some muzzle brakes mitigate recoil to the point that you can feel the torsion on the barrel created by the bullet spin as it exits the bore. Some people just accept it, and get used to it. Some people time the muzzle device off a few degrees to counter it. Bullet spin torque - eeeeeeeentresting. Never thought about that before. |
|
Quoted:
Bullet spin torque - eeeeeeeentresting. Never thought about that before. Quoted:
Quoted:
Some muzzle brakes mitigate recoil to the point that you can feel the torsion on the barrel created by the bullet spin as it exits the bore. Some people just accept it, and get used to it. Some people time the muzzle device off a few degrees to counter it. Bullet spin torque - eeeeeeeentresting. Never thought about that before. I mean, it is the BCM brake/FH hybrid... it doesn't mitigate recoil THAT well haha |
|
It's the dickmod rail that's causing your issue.
It's so ugly the barrel is trying to get away from it.  
In all seriousness, could be a dozen issues ranging from you to the gun to just the torture of the gun firing and barrel whip. A gun does not recoil perfectly straight back. Part of the reason some comps are timing to the one o'clock position. |
|
Quoted:
It's the dickmod rail that's causing your issue. It's so ugly the barrel is trying to get away from it.
In all seriousness, could be a dozen issues ranging from you to the gun to just the torture of the gun firing and barrel whip. A gun does not recoil perfectly straight back. Part of the reason some comps are timing to the one o'clock position. |
|
Quoted:
Some muzzle brakes mitigate recoil to the point that you can feel the torsion on the barrel created by the bullet spin as it exits the bore. Some people just accept it, and get used to it. Some people time the muzzle device off a few degrees to counter it. If you think back to the first time you fired a firearm, especially a handgun, you have probably forgotten how the muzzle seemed to arc around. The more you fired, you just got used to it, and it seemed to go away. You are experiencing that same thing except it may not "go away" because a rifle bullet leaves the barrel with a bit more energy than a handgun. A strong grip and good stance can also reduce the feeling. 
|
|
Quoted:
Frankly... your photo makes it look like the brake is canted. It could just be the photo... but... The wrench flats should be 90 degrees to the ground.. or parallel with the stock. Also be sure the bottom, limited cutout, so it doesn't kick up dust while shooting prone.... is .. well, at the bottom Even just an A2, if it's off will push to the side. |
AR Sponsor