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Bolt on muzzle break

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Unread 05-08-2013, 09:02 PM
Gold Member
Join Date: Dec 2008
Location: Laramie, WY
Posts: 541
Re: Bolt on muzzle break

A .308 brake on a smaller caliber rifle will not affect accuracy but it will not be as effective in reducing felt recoil, generally.
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Unread 10-21-2014, 12:25 AM
Junior Member
Join Date: Jun 2013
Posts: 12
Re: Bolt on muzzle break

Today I installed one of the Kahntrol bolt on muzzle brakes per their specifications on my 300 win mag. My rifle is a savage 110 FCP HS Precision with the factory heavy barrel. The first time firing, the brake blew off and landed approx 50 yards down range. After a little searching I found it a bit banged up on the outside and completely unscathed on the inside, so I know it wasn't from contact with the bullet. I spoke to the gentlemen shooting next to me for a few minutes, who turned out to be a gun smith about what happened. He thought the reason why it came off could be attributed to the tapered nature of the barrel. After backing out the screws I installed the brake again, this time adding 5in lbs to the recommended 30in lbs from the manufacturer. The next shot held, however the one after that sent the brake 50 yards down range again. Same story after inspecting the brake with the inner parts untouched and the outside a little more banged up. I know the OP is a bit dated, but I thought anyone contemplating one of these brakes would like to hear about my experience.
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Unread 10-21-2014, 07:21 AM
Silver Member
Join Date: Dec 2008
Location: selinsgrove pa.
Posts: 462
Re: Bolt on muzzle break

Cowboyarcher is right. A brake works by catching gases and porting them away. It has to have a wall to catch the gases and deflect them. If you have too big of hole most of the gases will just follow the bullet out the barrel. It would not reduce recoil very much. The more wall a brake has the better they work. When the gas hits the wall it will be pushing forward on the brake. I would think if they work well at reducing recoil they would be hard to hold. Also I read where Bill Caffee a well known 22 rimfire builder did a test where they put a tuner on a skinny Rimfire barrel. He slugged the barrel before the tuner and then installed a tuner with two 5/40 screws and snugged it to the barrel. Now when he pushed the slug through the bore was tighter. Matt
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