[dynachrome]

Pick up some steel core 7.62x54r, about $100 for 440 rounds in a spam can. There are semi autos that use it, though mostly bolt action Mosins, etc.

http://www.jgsales.com/7.62x54r-comm-bloc-light-ball-fmj-ammo,-steel-core,-440rd-tin.-p-4431.html

[tumblindice]

“spam can” Is it tough getting those cans open?
I read somewhere you had to have the top milled off.