I collect only dummy rounds without powder and primer. Is this unusual? I don't mind if it is, I am just curious. I don't handload, so I buy regular loaded ammo from a local successfull "commercial" handloader who sells a lot of regular ammo at a large monthly Chicago area gunshow. I asked him whenever he loaded some unusual calibers I don't have, to make me a dummy round. I must have 90+, including stuff like .577 NE, .600 NE, 50-140, 450 Alaskan, etc. I must say, however, that a lot of the most interesting stuff is "Bell" brass, and not the "original" brass.