Velocity: different shells come with various velocities. A lot more velocity signifies the shot ought to be propelled speedier, which frequently means more recoil. Choke: choke is a distinct discussion than shotgun shells, but what choke you happen to be utilizing must sync with whichever projectiles you're taking pictures. It's https://highimpactrounds.com/product/mossberg-590a1-spx-12-ga-20in-8rd/