help!--new Glock 36 problem

[longeyes]

I'm in the process of breaking in a new Glock 36. Through 400 rounds--all 230g FMJ factory loads--no problems. In the last 100 the gun began to exhibit a distressing pattern: the slide would fail to lock back at full rear position; instead it would pull back maybe 3/4 of an inch. This would happen both at the end of a mag and mid-mag. I'd say this happened at least ten times. Only solution: remove the magazine, rack the slide, eject a remaining round, and re-load. Is this an ammunition problem? A magazine problem? A gun problem? Or a user problem? The head honcho at the range, who said he was a Glock Armorer, checked out the magazines and thought they were okay. (The ammo was American Eagle FMJ.) He thought it could be a case of "limp-wristing." I don't know, it's possible, but I haven't had the problem with either of my other Glocks (26, 30). Maybe the power-to-weight ratio of this gun, combined with fatigue?--could that be it?

Ideas welcome. I'd rather think it's me than that it requires repair work.

 

[WESHOOT2]

Clean gun, repeat test using different ammo.
When (if) troubles re-appear have different shooter attempt to duplicate troubles. Then you'll know if it's a 'limping' problem.

 

[greg c]

Is the brass in the chamber retained by the extractor still or has the slide traveled backwards without it?

 

[ak9]

I had a similar problem, which I traced back to the magazines. The polymer around the metal feed lips was to thick and slowing the slide on the feed. I trimmed the polymer around the lips and no more problems. Re-check the magazines and check that area.

 

[Mal H]

Moving to Semiauto forum.