Cylinder choked shotgun, no plug, with #4 3"mag buckshot. 41 pellets per load at 20.7 Gr per pellet. For reference a standard .22 is 40 Gr so it's a decent sized chunk of lead fully capable of stopping a human cold. At 20-25 yds with a cylinder choke, whatever you are pointing at will flat out be mowed down. Guy that knows his stuff told me once that everytime you pull the trigger it's like shooting forty .22 bullets downrange at the same time and it is devastating on the recieving end.