I know this probably is a stupid question but here goes: What is the standard weight (pounds) for a 1911 mil-spec/GI, 5", all that? I bought a 1911 some years ago and when I first shot it I had terrible problems with stovepipes. Turns out it had some wierd recoil spring, too short, so I got a Kimber replacement, I think it was 12#, but I'm not sure. Anyway, problem solved, worked fine. I probably have shot 100 rounds since then. I take it out a few weeks ago and it's back up to its old shenanigans. Stovepipes almost every round, whether its with crappy Wolf or my JHP Rangers. I'm going to replace the extractor but I'm not surewhat the original recoil springs were set at. I don't know if this Kimber spring went bad or what. But I'm going to take on both suspects, extractor and recoil spring.