Thompson drum and in general are unreliable. In Thompson case if the drum has a dent or drop it become useless. You also need to wind the drum certain number of times. If you go over or under the range it will cause reliability issues.
The first Thompson sub-machine guns came with 20 rnds of stick magazine, IIRC.
Last edited by jdun; 05-05-2009 at 11:11 PM.
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