So, If you were building a short action (mini possibly) and investing a couple thousand dollars into the project, how would you build and what chambering. The reason I ask is that I used to have a Ruger 77 in 7.62x39 and sold it but miss having something similar for easy shooting and still deer capable. Must be a bolt action.

Chamberings I'm considering include:

7.62x39
300 AAC
6mm ARC
6mm Creedmoor
6.5 Grendel

Availability of factory ammo and multiple options are important, don't want to build something and have to rely on hand loads only.
Would consider a Remage type barrel, Mc, AG or Manners stock compatible action.

What do you think?