unclenunzie
Contributing Member
I think this one is going back to Kel-Tec for some care, but I thought I'd present the issue here in case anyone has seen this before. P32 running several different lots and varieties of Fiocchi 7.65 mm Browning (32 ACP), has recently begun this weird fail to extract. The result is very close to a type 3 malfunction - double feed. Empty case half extracted with the next round jammed up underneath it:
Over several instances in multiple range sessions the failure cause is clear: during extraction the spent case rim hits the edge of the case mouth of the next fresh round in the mag and prevents full extraction. Bolt thrust is sufficient for the extractor to tear the rim of the spent case as the slide pull backwards, the fresh round is picked up and pushed forward. But of course the chamber is still occupied by the half-extracted case.
This is a picture of the spent case oriented as a shooter would see it if they could. You can see where the bottom of the rim is deformed by the top of the case mouth of the next fresh round:
Picture isn't great but you can plainly see that deformation. The jam at that point is strong enough to stop the case from moving any further backwards so the extractor has no choice but to tear the rim (first picture). There is no ejector mark because the case never extracts far enough due to this stopping action.
The pistol has 735 rounds through it. I've had no ability to force failures by intentionally limp wristing it, two finger grip one hand only. Apart from this extraction issue it's been pretty solid.
Thoughts are most welcome.
Over several instances in multiple range sessions the failure cause is clear: during extraction the spent case rim hits the edge of the case mouth of the next fresh round in the mag and prevents full extraction. Bolt thrust is sufficient for the extractor to tear the rim of the spent case as the slide pull backwards, the fresh round is picked up and pushed forward. But of course the chamber is still occupied by the half-extracted case.
This is a picture of the spent case oriented as a shooter would see it if they could. You can see where the bottom of the rim is deformed by the top of the case mouth of the next fresh round:
Picture isn't great but you can plainly see that deformation. The jam at that point is strong enough to stop the case from moving any further backwards so the extractor has no choice but to tear the rim (first picture). There is no ejector mark because the case never extracts far enough due to this stopping action.
The pistol has 735 rounds through it. I've had no ability to force failures by intentionally limp wristing it, two finger grip one hand only. Apart from this extraction issue it's been pretty solid.
Thoughts are most welcome.