Current build is a 6mmbr and I am just waiting for the barrel to get here so I can go shoot. The next build is going to be....... 300 Rum, 338 RUM, 338 EDGE or a .338 Lapua. It will be a large shank and more than likely be built on a target action if I can't find an original RUM action. I like the idea of the Edge with the case capacity of the .300 RUM but uses a .338 bullet. Can the brass be sized in one step by running it through a .338 neck sizer? I also like the fact that .300 RUM brass is easy to find, even 1x or 2x fired and is cheap compared to something like the .338 Lapua. Another requirement of this next rifle will be a muzzle brake, and a big one at that. I have played the big rifle game in the past from a bench (9 pound .300 RUM) and it hurt.