Let's be honest about 1911s and reliability. Even Ed Brown suggests using one or two brands of ammunition, both 230gr FMJ and he even goes so far as to say that you should stick with what works. My Kimber runs 100% reliably using 230gr FMJ factory ammunition (tried four different brands with zero failures) and my 200gr LRNFP (Oregon Trail) reloads using crappy PMC brass, W231 powder and WLP primers. When I say 100%, I'm not talking about a box of 50 in an afternoon at the range, I'm talking 150 rounds in an IPSC match which puts more stress on the pistol since all of those rounds are shot within less than five minutes. I've been shooting my way through thousands of 185gr LSWC bullets from Western Nevada that I bought many years ago. These bullets are 100% reliable in any of my SIG P220s, but I'll admit, as accurate as they are, they simply aren't reliable in my Kimber. At this point, I won't use them for an IPSC match for that reason. I haven't tried any HP bullets in my Kimber yet and probably won't since it's not a defensive pistol per se. My Ed Brown fills that role.