I like the guns .25's come in. The FN , Colt Vest Pocket. I had a Beretta 950 which was very reliable and Glaser Safety Slugs seemed pretty potent. However, I was shooting one day and using old , left out in the desert sun, plastic shot gun shell hulls. I could hit them every time, but not a one had a hole in it. The plastic got dented, but no hole.