Okay, I'm getting a little frustrated with this one. I've had several failures lately and I'm at a loss. What happens is the spent brass gets extracted, and jammed between the barrel hood and the breech face. It's like you set the spent round on top of the next one in the mag, primer towards the breech face. (sorry, I don't have any pictures right here) It has run fine for probably 5k+ rounds, and now I can't shoot a stage without at least one issue. 38 super, 169 PF at the state match 2 weeks ago.
The gun has a standard recoil system with a 9# variable spring with 2 or 3 coils cut off. I suspect this gets it close to an 8 pound spring. The problem seems to happen with all of my mags, and isn't particular to one type of brass. I replaced the AFTEC springs this spring, I would guess they have about 3k rounds on them. After pulling the gun apart, I found nothing abnormal about it, or the extractor tube. It was a little bit dirty, but certainly nothing that I would be alarmed about. The ejector looks normal, it isn't broken at least. No cracks in the grip, frame, or slide that I could see. I can try replacing the Aftec springs again, but I would have expected them to last longer than 3k rounds. Anybody have any other ideas?