I am building a .338 Lapua (or Improved---.338 Allen Express is my preference) on a CZ550 Safari Magnum action. I currently have a Bell & Carlson H.E.T. Stock, the 20 MOA CZ H.E.T. rail, plus Barrett 15/40 Ex-Rings (so currently 35 MOA in the scope mount. I will be adding a Nightforce to the mix, but currently the 30mm rings are home to a VX-III Leupold 4.5-14x50mm with delron bushings. So basically, I am ready to go on and rebarrel, it is a .416 Rigby so it would be an easy fit. I am trying to decide on two things, barrel contour and manufacturer. I have chosen a 1-9" twist with odd number of grooves (my preference), since I now have 2000 300gr. Sierras, with plenty of Retumbo, and even some 869. First off, manufacturer. Rock Creek or Pac-Nor Super Match??? I'm having a problem finding a suitable gunsmith for the monster Mauser, and Pac-Nor CAN actually rebarrel the rifle in shop with a turn around of 14-16 weeks. That's a plus, but I like the 5R style of rifling. Pac-Nor offers a 5 groove, which is acceptable. Secondly, ABOUT STIFFNESS, I don't want a benchrest rifle, I want an elk rifle with extreme range capability (1500+ yards). Light Varmint contour, or perhaps a Medium Palma contour??? I like the idea of the Palma contour, for better ballance, but is it as stiff??? What about a MTU/AMU barrel contour? That's too heavy in my book. I want it stiffer than a Sendero barrel, and barrel length is still up in the air, and open for discussion. I've been considering all options for several weeks now, and am still having a hard time deciding the best choice. Let's say a max barrel weight is 6 lb.---and YES, I would LOVE to have an ABS barrel, but I'm not that rich, LOL. Now is your turn. What would you choose??? I'm ALL EARS!!! :^) THANKS!!!