Accuracy issues with muzzle brakes

[Sir Toast]

the torque(how tight it is)does not affect accuracy...the weight of the brake has changed the barrel harmonics...if shooting hand loads a little tuning will bring accuracy back.

This, +1. Just some barrel harmonics.

[FourT6and2]

The barrel is a giant tuning fork. When you take a shot, the barrel vibrates at a certain frequency and amplitude for any given load. Change the load, you change the harmonics. Change the length or mass of the tuning fork (barrel) and you change the harmonics. In either case, you affect accuracy and/or precision. So... know this, if you make some change the barrel system (like adding or removing a brake), you can compensate by adjusting your load.

[Carcassonne]

It might be possible if you have a thin barrel.

If the brake and/or barrel has a large chamfer and you tighten the brake really hard if might force the end of the bore to be slightly smaller.


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