New to me malfunction? - Page 2

1911Tuner · March 30, 2024, 12:08 AM

Invited from afar.

It's called Jumping the Feed Lips or Jumping the Follower, depending on who you talk to.

The round in the magazine moves forward as the slide is nearing its rearmost position during recoil, then appears to jump when the slide hits the impact abutment. What actually happens is that the pistol is jerked out from under the round.

The follower rises and engages the slide stop. A variation of this malfunction is seen with live rounds on the ground among fired brass when the next to last round jumps and the last round feeds.

It most often only involves the last round.

The cause is a weak mag spring, lack of a cartridge stop on the follower...dimple...
or both, but is most often the mag spring, but is can be exacerbated with a heavy recoil spring, which is the usual with the 10mm pistols.

March 30, 2024, 12:08 AM	#26
1911Tuner Senior Member Join Date: May 17, 2004 Location: NC Piedmont/Foothills Posts: 667	Invited from afar. It's called Jumping the Feed Lips or Jumping the Follower, depending on who you talk to. The round in the magazine moves forward as the slide is nearing its rearmost position during recoil, then appears to jump when the slide hits the impact abutment. What actually happens is that the pistol is jerked out from under the round. The follower rises and engages the slide stop. A variation of this malfunction is seen with live rounds on the ground among fired brass when the next to last round jumps and the last round feeds. It most often only involves the last round. The cause is a weak mag spring, lack of a cartridge stop on the follower...dimple... or both, but is most often the mag spring, but is can be exacerbated with a heavy recoil spring, which is the usual with the 10mm pistols. __________________ If your front porch collapses and kills more than three dogs...You just might be a redneck Last edited by 1911Tuner; March 30, 2024 at 12:13 AM.