This is gonna be long winded. Apologies in advance. All my buddies carry 9mm or 45acp. Im the only one who carrys 22 in our group. They always give me poop cause its a girl gun,not enough power,blah blah blah. Typical buddy joking stuff. So i decided to do a highly unsientific test in my basement today. I live in town so no shooting in my yard for me. My edc is a ruger lcp2 in 22lr. I recently got this gun. I have shot it just with buddies messin around. never at targets to actually sight it in. So the shot way to the left and way high was me seeing where this thing hit. So well call it a 7rd group. Approx 2.5x2.5 inches this is at 21ft with federal 36gr hp. Not all but I think 5 of the 7 in the group went through a standard 2x4 a solid wood door tgats at least an 1" thick. Not the modern lexan doors. This one is 100yr old real wood. And proceded to chip my basement wall. I now have proof (good enough for me) that 22lr will definataly end a badguys day. My other arguments for 22 as a carry round are control of the gun for follow ups and less potential for an inocent to be killed by a bad shot. (Edit) i only found 1 round but it mushrooms huge through approx 2.5" of wood and hitting concrete