There might something to be said about how tight you wind the drum. I tried shooting with the drum full with 50 rounds. I wound it according to auto ordinance instructions. First 25 rounds went off with out a hiccup! The 26 round jammed. The spring felt like it was unwound. I wound it up about 15 times and the rest shot with out a problem. The drum is cool looking, but I see where it can be a pain in any kind of serious shooting.
Machine Gun Charlie