I've got a 1911 that I am trying to setup for USPSA Single Stack (Dan Wesson in .45), and I had one malfunction a couple weeks ago where the spent casing from the last round in the magazine was extracted from the chamber and lodged in the magazine feed lips. Correct me if I'm wrong, but I believe this is caused by lack of extractor tension where the extracted casing slips down low during the extraction/ejection cycle?
After the malfunction occurred, I bent the extractor (by hand using one end locked in a vise) to increase tension, and until I saw a noticable increase in how firmly the extractor holds a .45 round against the breach face. I have also done the extractor test (fire one round with no magazine in gun) and still get a failure approximately 1 in 5-6 rounds where the spent casing is either stove piped in the ejection port or falls out through the mag well. With a full magazine in the gun, ejection is very consistent except for the last round in the mag, which could end up coming straight back at me, dribbling out of the gun, or getting launched 15 feet to the right...so while the gun hasn't malfunctioned again, it still needs some adjustment to be perfect. My question is what do I try next? Do I continue adding tension to the extractor or is there another issue that could be causing this? Thanks,