Hello, I am thinking about buying a target rifle in 22-250 cal. and then bringing it to my gunsmith so he can change it to a 22 BR cal. I also want to purchase 6mm BR brass, but its not readily available up here in Canada. I can order it south of the border, but I think I will be stuck with the export fee and the lengthy wait time for the gov't to give permission to ship it. So my question is, is there any articles about using case forming dies on 22-250 parent brass to change it to the 22 BR brass ? I'm not sure if this is good option, but it would be nice get an opinion on it. -thanks