I think Quentin & Deathkricket might just have something. When he showed me the rounds, I took the gun, tapped the mag and fired off 5-6 rounds without a hitch. This was a new mag and he very well may not have seated in completely. (This was only the second time he'd ever shot an AR, and the first time was 4-5 yrs ago)
"To disarm the people is the most effectual way to enslave them."
- George Mason