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Poodleshooter · September 23, 2002, 12:18 PM

I've had some trouble with a recent .45ACP loading of 4grs of Clays under a 230gr LRN moving at just around 800fps. Periodically during a recent IDPA match, after about 40-50 rounds had been fired, my Glock's extractor would slip over the round, leaving it partially extracted and hanging halfway out of the chamber, causing a slide stoppage. There are no unusual marks on the case from the extractor claw. The barrel is, of course, fully crudded up with lead, though that usually isn't a problem for less than 100 rounds. On visual inspection, the extractor is ok, and the pistol functions well with other reloads.
I had tested 25 of these rounds the previous day with no problems, though during extensive 1-200 round tests earlier in the week I had experienced soft primer strikes in about 10% of the cartridges. These left a shallow dent, but fired on restrikes. Those rounds left me wondering if the pistol was locking up properly, but visual inspection showed that the slide was locked up properly for each shot. The bullets may have been seated a bit too far out in that case, as I was still toying with pressure. When seated deeper and crimped tighter in the subsequent batch, the soft strikes disappeared, but this extraction issue cropped up!
So any ideas on what is to blame on the newest batch? Sticky case from overpressure? Excessive slide speed slipping the extractor over the case?

September 23, 2002, 12:18 PM	#1
Poodleshooter Senior Member Join Date: August 8, 2000 Location: Floating down the James River in VA Posts: 2,599	Overpressure? I've had some trouble with a recent .45ACP loading of 4grs of Clays under a 230gr LRN moving at just around 800fps. Periodically during a recent IDPA match, after about 40-50 rounds had been fired, my Glock's extractor would slip over the round, leaving it partially extracted and hanging halfway out of the chamber, causing a slide stoppage. There are no unusual marks on the case from the extractor claw. The barrel is, of course, fully crudded up with lead, though that usually isn't a problem for less than 100 rounds. On visual inspection, the extractor is ok, and the pistol functions well with other reloads. I had tested 25 of these rounds the previous day with no problems, though during extensive 1-200 round tests earlier in the week I had experienced soft primer strikes in about 10% of the cartridges. These left a shallow dent, but fired on restrikes. Those rounds left me wondering if the pistol was locking up properly, but visual inspection showed that the slide was locked up properly for each shot. The bullets may have been seated a bit too far out in that case, as I was still toying with pressure. When seated deeper and crimped tighter in the subsequent batch, the soft strikes disappeared, but this extraction issue cropped up! So any ideas on what is to blame on the newest batch? Sticky case from overpressure? Excessive slide speed slipping the extractor over the case?