DPhillips:

Just curious, but what will you be using it on? Bear, elk, caribou?

The reason I ask is, I've wanted to hunt brown bear up there, but was told by an experienced hunter who's hunted Alaska several times (and taken Grizzlies) that the 300 H&H is "not enough" for the big bruins, especially from a single shot (Ruger #1). He seemed to feel that a bear hunt using my single-shot was too risky, even if backed-up by a PH with a 416 or 458WM.

He recommended taking a bolt instead in .338 WM or .375H&H (which I have in a BRNO 602). He also said the "minimum" 300 mag to use against bears was a 300 Weatherby.