Re: .473 Rem. 700 LA bolt face
Ramp, it'll cost more than it's worth to use the Mag action, and it will still be too long. The best place to get a bolt is PT&G, but it'll still be a long action. Save your money and watch for a .308, .243, 7-08, .22-250, etc. All of them have the correct bolt face and all the factory guns are in a short action.
Good luck, Tom
Texas State Rifle Association Life Member
NRA Endowment Life Member
A big fast bullet will beat a little fast bullet every time