ORIGINAL: 300grains
If it comes in 308 win, a splendid cartridge.
If it was availible in 308, I wouldn't have to ask this question. The 308 is by far my favorite round, but it is not offered in the XCR. I'm kinda leaning toward the 30-06.
To everyone else who has responded, thanks for your opinions. I must admit however, I can see no need for anything "magnum" when it will be used 90% of the time on deer and black bear.