Assuming you live in Alaska, and I’m not sure of your intentions with this bullet.... it may be a “little too fragile” for big (moose etc.) game. And....I certainly wouldn’t trust my life to them on the big bears. Not to sound “too” negative...but I had several “very” bad experiences with Sierra 300 grain in .375 H&H, back in the ‘80’s. They “exploded” on several animals, failed to exit a mule deer and a black bear ( both broadside shots)...finding an empty jacket only!Maybe their bullets used for big game have vastly improved over the years....but I-choose not to find out. They should be great for smaller, thin-skinned big game....provided you can get a “written guarantee” that you will not be “molested” by a bear! memtbJust acquired some Sierra Pro Hunter 225gr any good load data with this bullet?