1. If you pull the trigger and your gun does not go bang, you are out of the match.
2. There is no maintenance on any gun after the match starts. You can’t lube the gun and if your sights fall off, either you quit or you shoot without sights, but you don’t get to put them back on. You don’t get to tighten screws or tap back in pins that have “walked” during the match.
3. A gun may not be hand cycled after chambering the first round of the day. You can sling shot or mag release to send the gun into battery after a reload, but you cannot cycle a gun already in battery in order to feed a new round into battery.
Note that last rule. If the slide fails to lock back after the last round the pistol was out of the running. And here are the results, from lowest to highest round count.:
Pistol Model Factory # of rounds Cause for Failure or Reloads
Glock 21 R 2 Slide lock with mag
Glock 17 R 2 Failure to Feed
Kimber Tac II F 6 Double Feed
Wilson 1911 F 7 Failure to Lock Back
Colt 1911 F 8 Failure to feed
Glock 22 F 8 Stove Pipe
Glock 17 R 8 Mag failure to lock in
Glock 35 R 49 Failure to Feed
10-8 NY 1911 F 279 Failure to Feed
Glock 17 F 344 No Slide lock on Empty
Glock 21 F 977 Failure to Lock Back
Glock 17 F 980 Sight off
Colt 1911 F 1008 Finished course of Fire
Glock 17 R 1073 Finished course of Fire
Glock 17L R 1167 Bad Primer
So out of the 17 guns seven conked out in the first magazine. Two other guns not listed above- one Colt Government and a Glock 17 – had no failures.
I don’t know how much to draw from this. Not oiling a gun for 1000 rounds isn’t very realistic, for instance. But it’s interesting to see what the failures were. One person’s Glock failed when the aftermarket stick-on sandpaper grips blocked the slide release, for instance. Conclusions from this and other Glock vs. 1911 shootoffs here.