I got a itch

[tired]

I've been thinking of going to long range hunting(Bragging rights) my first thoughts were to go with a sendero clean it up and be done but talking to a friend of mine(a fine smith) for about a grand he said he would build a custom on my action so with a little bit extra money I'd have a real shooter.I'm leaning towards the 300 rum any other sugestions and why? I compared 300win and 7rm also once you get to 500+ 300win theres no advantage.