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Do you use the 30 caliber brake for 6mm and 6.5 caliber? — 1 Answer
by
Bob Anderson,
from TX, United States Asked on October 13, 2025
Kaw Valley Precision OPMOD Self-Timing Muzzle Brake(3.7)
Answered by
Guywitha6arc,
guest,
from IN, United States,
on November 27, 2025
Yes. .30 is the closest to 6mm and 6.5mm. I use a .30cal 2 port brake on my 22" 6mm ARC AR and the recoil is almost gone when shooting off a tripod and rear bag while prone. Only downside to a good brake is the concussive blast, not to bad on a 22" barrel. I used the same brake on a 10.5" 300BLK pistol and didnt get through the mag before putting the can back on.
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