Originally Posted by lloydsmale
Id find some other gun to do it on. those 721 h&h guns are hard to find and are going up in value every day. Kind of a shame to cut up an old classic like that even if it wasnt worth much. Id go find a newer cheap sps and build something on that instead.
That is a classic rifle in a classic chambering. Don't know if all the upgrades will ultimately get you the rifle you want. The .300 H&H is the parent case for a lot of modern magnums, my .300wby included. Granted you don't want to push the H&H as hard as some other magnums ( shoulders angles, brass flow, etc.) I think you can easily get the 208 Amax to around 2800 fps safely. The cartridge is well suited to the heavier class bullets if its a 1/10 twist barrel. Good Luck.