Velocity: different shells come with unique velocities. Far more velocity indicates the shot ought to be propelled more quickly, which frequently implies extra recoil. MGL Chapter 140 mentioned: “Huge ability weapon”, any firearm, rifle or shotgun: (i) that is definitely semiautomatic with a hard and fast substantial ability feeding product; https://highimpactrounds.com/product/mossberg-590a1-tactical-12-ga-20in-8rd/