A friend of mine says he has a 30 cal 1-12 twist(he thinks) he wants to get of. May finish out at 26 inches. I have wanted to build each caliber but not sure what to go with. What do you guys think and why? I have access to both a mauser action and a rem 700. I'm kinda leaning toward thee mauser in the HandH for the classic feel. But found good things bout the 30-338. Thanks!