7Brothers SubSonic 223 is designed to be shot suppressed from a bolt action rifle with a 1:7 twist and suppressor. This round utilizes a Hornady 77gr OTM projectile with an average velocity of 1085 feet per second, perfect for the Silent Hunter.
Though this cartridge will not cycle a semi-auto, shooters can manually cycle semi-auto rifles and achieve an accurate and silent round.
This cartridge has proven to be accurate with both short barrels (10.3") and standard barrels (16"-18") with a 1:7 twist.
Though this cartridge will not cycle a semi-auto, shooters can manually cycle semi-auto rifles and achieve an accurate and silent round.
This cartridge has proven to be accurate with both short barrels (10.3") and standard barrels (16"-18") with a 1:7 twist.