That's a tie between my 2 carry pieces: my SA Stainless Mil-Spec 1911, and my S&W Model 10. I tend to use my beater gun (model 10) more often, but when I go target shooting, I tend to shoot more out of my 1911. (as that's what I carry when I'm afraid the S might HTF) So it's kind of a close race there. The Buckmark gets a close third, but it's been acting up lately, so it's just all the past rounds that have gone through it that keep it in the running.