Damn, that sucks bro. Just shippped mine back today. Customer Service guy was real nice. Seemed like he knew of the issue and said they definitely needed to check it out. Asked me if this was the first time I sent it back, so I had a hunch they are seeing return trips for the problem. I too don't want to blow through 500 rounds every time to prove the gun. Gets expensive real fast with .45 ACP. Hopefully, they get it right the first time. I definitely will need to run a bunch through because my problem started at the 150 round mark. If it happens again, I'm not sure what I will do with it. I spoke with another guy at work and I told him I was having the issue, and he said, "Wow, my brother just bought one and he experienced dropped magazines last time out, but he thought it was maybe something he did." Nope....Houston, he's got a problem.