I have a Daisy 1000 spring piston , with hollow point pellets it groups 1"@25 yards and will punch straight through a steel carb cleaner spray can . It will also drive a flat match grade pellet through one at the same range , they come out the other side about 3/64" thick . Back when I had a Daisy 880 pump it would group 1"@25 yards and drive a flat match grade pellet right through a rabbit's head .