hi wrote:they also do two other things-
(A) it prevents muzzle climb on full auto (obviously not a problem on a potato gun)
(B) it reduces accuracy. (again, not really an issue with a potato gun) this is the main reason that the ak-47 is only good for medium range.
Please provide a source for (B) it reduces accuracy.
POI will change very slightly, but with the use of your windage/elevation adjustments on the sights your firearm should consistently hit the same spot.
Muzzle brakes that are pinned/staked or clamped on have been known to affect accuracy, but this has been usually found to be the brake was not concentric with the barrel. Integral and threaded brakes do not see this issue.
Also some calibers/rifle combinations are inherently more accurate than others with or without a brake.
If memory serves me, the AK-47 was not designed for long range shooting.