[Unknowing]

Forgive my ignorance, but what about a ‘hang fire?” I do not want my thumb behind a semi-auto slide when a cartridge hangs fire. I reckon that it's much more common with rimfire rather than primered centerfire ammo. But if a round fails to ignite instantaneously on a 1911A1, I would rather keep my eyes on the target, wait one moment, and clear the round by moving the slide with my left hand (touching off the second shot immediately) than put my right thumb in harm's way.

[Spktyr]

If we’re talking about the intended use, you don’t exactly have time to wait to see if the round will eventually go off. Again, discard and continue with another round instead.