Have a chance to buy a 8mm rifle,that has a 318 bore size?88 mauser i believe?its not the regular 8x57 thats loaded by rem. win. federal in factory form.can i get 318 dia.bullets?or,can i size 323 dia.bullets down with a bullet sizer.from a ny of the die makers?how about cases,reloading dies.can anyone tell me the correct name of the cartridge,rifle model?thanks.