To re-size loaded brass you need a FL Bushing die with the bushing removed.
It sounds like you really need a annealer if your trying to use the same brass for multiple rifles.
Size everything back to factory specs.
Expect an occasional case head separation if you load too many times.
Get a crimped prime pocket repair tool and take all that FREE brass and reload it once and sell it
easy crimp removal
http://www.ch4d.com/products/equipment/priming-tools/psk
