I've always heard that 25 acp is a terrible round.It will bounce off clothing,might as well throw it at the assailant ...I have a 25 acp and it goes through 10 in. of packed cardboard then into a 2 by 6 and then into the ground at least 4 inch.It is the smallest of all centerfire rounds but it can get the job done. My wife can handle it if necessary which is the most important.