jblois

Not familiar with "glocked brass" what does a Glock do to brass? I'm using the barrel to check. Yesterday a round that I thought I had barrel checked failed and I got a bad jam, I'm chocking that one up to the fact that my reloader is in the garage, cold night when I loaded and barrel checked. I'm thinking perhaps it expanded when it warmed up the next day. All signs point to brass, I'll track what bulged cartridges headstamp is and follow up. I'm just switching over to a Dillon 650XL today, so I'll see if the problem persists.

Major in this 9 is not an issue, and I don't think it's an issue with the die or it would be happening more frequently

The brass is the wild card, it's 2,000 supposedly "once fired" mixed brand. Lots of problem cartridges have been Winchester but there are also other manufacturers brass in the bulged. Just started tracking it.

Hello, and thanks in advance for your time. I'm reloading 9mm Luger on an older 550B, although the dies are brand new. I'm an experienced loader although new to 9mm. My issue is bulging at the case base. It doesn't happen consistently, but I would say 1 every 75 rounds. I'm loading 124gr jacketed with around 8.0grains of HS-6 and CCI small rifle primers. It's a pretty hot load, but I'm shooting 9mm Major through an STI Matchmaster. The bulges are barely visible but they are causing the gun to not go into battery, leaving the slide about 1/8 of an inch away from locking up. The jam is then very difficult to free as the cartridge is really wedged in the barrel. My OAL on the cartridge is in line with published data, and like I said, 98% of cartridges are fine and no issues with feeding. I've played around with the crimp and it seems to be well adjusted, same comment as previous, 98% of rounds are perfect. It just seems bizarre that it's only happening about once every 75 rounds. I'm chamber checking everything, which I do for match rounds anyway but I'm shooting 800-1000 a week so that's a pain! Again, thanks and fingers crossed you can help me!