I have just received a brand new set of RCBS 6mm Rem dies. I want to load some cartridges for my brother who'll be visiting me in about 3 weeks. I have all the components necessary to load several combinations of bullets and powder for us to try out in his rifle, including new brass.
My question is this. I have all the components, but I don't have his rifle, he's bringing it with him. I do however, have a couple fire formed cases from his gun. Can I set up the new sizing die, and be sure the cartridge will fit his rifle, by using the old cases I have? If so, how do I do it?
Or do I need to wait til he gets here with the rifle? I'd like to get a jump on loading some test cartridges, as he only has a limited time to hang around.
Thanks, Bacova
