I already have a .338-06. I had that one built in '97, and it performs famously. With the Kreiger barrel, I can get one-hole 3-shot groups at 100 yards, and I have shot groups under an inch at 200 yards. I have to do my part, of course, but the rifle is plenty capable. I have gotten my best accuracy with 200-grain Balistic Tips and 250-grain Grand Slams. I am hoping to find a load for the 225-grain Accubonds. I haven't played with them much.
I really want a .375 H&H, but I found this rifle cheap, so I might postpone my .375 H&H plans. I think a .280 Improved would be a dynamite sheep & mtn goat caliber. I can get the machinist to shave off a little wieght on the action, fluted barrel, lightweight stock, compact scope....
Thanks for the tip on .280 AI brass, Superpig. I might start buying a bunch now. Who knows how long it will be available?