I have fired several different 410 rounds number 6 shot in 2 1/2 in is best at snakes out to ten feet for 2 legged snakes double oo buckshot in 3 in shell is great out to 35 feet. Will keep all 5 pellets in torso of man sized target. With 45colt fired 12 rounds at 6 in steel plates on dueling tree from 40 feet got hits on all shots. WITH A DERRINGER. THAT IS MY NEW GO TO GUN.