ok, so are those opinions governed by favoritism towards .45 cal or supported by real facts. Don't u think the .40 cal can and will outperform the .45cal if given more time and opportunity in the self-defense world? I'm not trying to start a holy war on which is better. Just wanna know which cal should my next pistol will be. I already have a P99 in .40cal. I'm planning to buy a new 1911 and was just wondering why only few .40 cal 1911 are out there. Thanks though for all the insights regarding this issue.