I had never experiended this problem until I switched to some flat pointed boolits for my 1911. On the 3rd round in the magazine, the slide would sometimes lock open. Upon inspection, I could see why, the flat pointed bullets I was using allowed the cartridges to move forward just enough in the magazine that the ogive of the bullet could rub the slide stop during feeding. Naturally, like most other functioning problems, this only occured when firing, and not during hand cycling. Some of my 1911's gave problems, some did not. When I got home, I inspected several of my other automatics. I beleive they all utilized some kind of spring action keeping the slide stop from rising until positive engagement of the mag follower had been made. The 1911 was the only one in my collection which uses no such mechanism, except the friction of a plunger.
Anyway, here's a fix, I used a dremel to put a detent in the slide stop, it works great. I've fired several hunderd of rounds since, not a single failure.
I kind went overboard on the size and depth, you know how it goes, the first one us usualy the worst. I had to play with angles a bit to get good action and reliability. Naturally, each time removing a bit more metal. So the detent is like 10 times as big as it needs to be, a simple dimple about 3/4 of the way up the back of the stop is all that's needed. My second attempt looked much better (I'm just too lazy right now to take a picture of it).
I'm surprised someone doesn't already market a dimpled slide stop. I have heard of other people experiencing the same problem, flat points and hollow points were the two bullet styles that were problematic for me. Anyway, the fix works great.
The Gun:
The fix, you don't need a casm like this, a simple dimple up top worked much better. You know how it goes, ruin the first, then you'll know.
Anyway, here's a fix, I used a dremel to put a detent in the slide stop, it works great. I've fired several hunderd of rounds since, not a single failure.
I kind went overboard on the size and depth, you know how it goes, the first one us usualy the worst. I had to play with angles a bit to get good action and reliability. Naturally, each time removing a bit more metal. So the detent is like 10 times as big as it needs to be, a simple dimple about 3/4 of the way up the back of the stop is all that's needed. My second attempt looked much better (I'm just too lazy right now to take a picture of it).
I'm surprised someone doesn't already market a dimpled slide stop. I have heard of other people experiencing the same problem, flat points and hollow points were the two bullet styles that were problematic for me. Anyway, the fix works great.
The Gun:
The fix, you don't need a casm like this, a simple dimple up top worked much better. You know how it goes, ruin the first, then you'll know.
