This thread seems like one that could go either here in The Smithy, or up in the Semiauto forum. Per OP's request, I'm sending this one north to Semiautos.
A gunfight is not the time to learn new skills.
If you ever have a real need for more than a couple of magazines, your problem is not a shortage of magazines. It's a shortage of people on your side of the argument. -- Art Eatman