I was surprised at how much power these little bullets have... I was shooting them in my back yard at about 25 yards... I figured I put up a stack of cardboard up to stop them... I had 10 pieces taped together pretty tight... Shot 5 rounds and all 5 rounds went through... Then I put the cardboard in front of two sheets of drie wall... Went threw all that, then I pit a piece of 1/4" steal plate behind that... I would shot and I could hear the bullet smack the steal plate, pretty hard... I went down and the bullets were completely flattened out like a pancake... Some of them were in pieces... I didn't think a little 22 short would have that much powere[&:]They were shooting pretty good too... 5 shots in about as nickle size group at 25 yards... Not bad huh???