Hello. I am a newbie here and am an avid hunter and also do a fair amount of shotshell and rifle reloading for general hunting and sporting purposes. I inherited a Remington 700 Benchrest gun in 308x1.5 caliber from my wife's late Grandfather. He was a machinist for Florence Machine Tool and Die in MA and built a few custom guns. The reason I am reaching out is because I only received some notes he made and am interested in reloading some ammo so I can shoot the rifle. The gun says ".311 Cast Bullet Gun" written on masking tape on the stock. Im wondering if I could shoot plated bullets or if it can only shoot cast bullets? Also if I can shoot plated bullets what is the best way to determine the proper bullet diameter? If I were to cast bullets what would be the best option to go that route? I have standard 308 150-165 grain plated bullets but thought I would ask the experts before getting started. Thanks for any help you can provide.