I'm working on building my first custom rifle. I've got a savage action with a 300 win mag bolt face. I have no idea what cartridges can be used with this bolt face i will be using this for hunting and target shooting at 1000+ yards. I have a 308 win but i would like something a lot hotter either in 30 cal or 338 cal. I really like the lazzeroni cartridges but i just don't kwow much about them or if they would even work in my action. Any advice would be great. Thanks