my SA 1911A1 Loaded suddenly started dropping the hammer when the slide is closed! I had loaned it to a friend who's a former LEO, and he experienced it the first time. It's funny, tho, because just the weekend before, I had shot over 200 rounds, without seeing this problem.
When closing the slide, not all the time, but about 1 out of 4 or 5 times, the hammer will drop. Not all the way, thank God, or my friend would have been minus one kneecap! It's stopping on the half-cock notch.
Any tips in what I should do to remedy it? I already decided I'll take her all apart and make sure there's no stray lube or grit or anything. If cleaning the internals up doesn't help, think it might need another sear or hammer? It's got around 1k rounds through it, and functions fine otherwise. Hints and tips are welcome!