.280 Rem "experts" wanted

[echo]

I have a model 70 lightweight .280 and have taken 7 species of game with it (whitetail, mule deer, antelope, elk, caribou, bighorn sheep, and mountain goat). All were taken with Sierra 140 boattails with the exception of elk, for which I used Nosler 150 Partitions. Longest shot was my sheep, which was about 300 yards. The Sierras are very accurate, but I think bullet performance is a little bit lacking for the larger animals. I don't like the partitions for deer size game, as I have punched one right through a deer without opening up. The partition went clear through my elk this year at a ranged 193 yds-he only went about 30 yards before piling up. I can't force myself to get any other big game gun, I like mine so much. I have a Leupold 2X7 on it, and I figure if the 7X isn't enough magnification for the shot then I need to get closer.