Guns: A 1911 Magazine Analysis
Candiru, a member on THR, has put up an amazing article testing various 1911 magazines.
The magazine is the heart of a repeating firearm. Even trustworthy designs like the Mauser 98 and the AK will choke when mag springs/followers/etc. are awry. While I have relatively limited experience with 1911s, it doesn't take a genius to know that they aren't immune to this problem, either.
Candiru's article is extensive, and hearing about all those potential feeding problems is enough to make you want to go out and buy a revolver. Highly recommended read.