A Lot of people have taken a lot of there time to test this little cal. shooting through diferent media like Balistic jel., water bottles, Phone books ect. I my self did the phone book test, Have some one use as I have just for Kicks, a Pack of Pork ribbs tide in front in this same order to a 1 pack of porks heart, then a pork shoulder ending with a 500 page phone book. Use youre kel Tec P32 with FMJ Fiocchis 71 gr. you will be impress it goes through all layers finishing in page 239 of the phone book. Then try the same with a P11 using FMJ 115 gr. the results are allmost and enfacise on allmost the same. Then whey people talk that the 32 acp is bare min. for self defence? granted not shooting through car doors or heavy media.