Brake - false cap accuracy

[mshelton]

This may be an odd question but does anyone have any idea the POI or even accuracy variation one could expect going from a muzzle brake to a false cap?

Thinking of having a brake put on a new barrel but wanted a false cap to for some of the local matches that don't allow breaks. Just wondering if someone has done this and what they experienced.

Thanks

 

[Preacher]

You can bet the farm that each and every barrel will have a preference...

 

[fdshuster]

mshelton: I had a 308 done with a brake and the thread protector. When switching from one to the other I can see about a 2" shift in the point of impact at 200 yds. Usually high & to the right. I know where it's going to go, so just do the clicks before I even fire the first shot. P.O.I. is centered with the brake, and with the cap the shot(s) are at the 1 to 2:00 position. Groups are always smaller with the brake.

 

[TonyR]

mshelton: I had a 308 done with a brake and the thread protector. When switching from one to the other I can see about a 2" shift in the point of impact at 200 yds. Usually high & to the right. I know where it's going to go, so just do the clicks before I even fire the first shot. P.O.I. is centered with the brake, and with the cap the shot(s) are at the 1 to 2:00 position. Groups are always smaller with the brake.

Frank.
What happens to the tune if you just take the brake off and leave the threads bare??
Thanks.

 

[Larryh128]

My suggestion would be to match the weights of both the brake & the cap. This by no means guantees the same POA but it certainly won't hurt. I have done this in the past & really haven't seen a big variation in target impact. I also agree with Preacher & FDSchuster. Normally groups will be better with the brake but that's not your question.

 

[mshelton]

I gotcha, a false cap in the same weight range as the brake, kinda like a tuner or keeping it in the same tune.

 

[fdshuster]

TonyR: Don't know, never tried it. I'm so afraid of damaging the threads, anytime the brake is off, the cap is on.