Current plan is to use the same M700 .300 WM I've used for everything since I moved to CO 8 years ago. It loves the Hornady Superformance GMX 165. However, I inherited a barely used (maybe 2 boxes of ammo at most?) M700 in 7 RUM from a cousin that passed away last year and I'm contemplating using that instead. He bought it in 2002 but had a tragic accident soon after that kept him from ever getting to use it out West like he had intended. Sadly Remington barely supports this round anymore, but I'm thinking I'll get some of the HSM Berger 168s for it. Should be a long range laser for deer and antelope. Long-term i would really like to build this into a dedicated LR/open terrain hunting gun, would be a fun way to keep his memory alive.