The .358Winchester and all rounds similar it are good solid 300 yard game rounds for North America - deer and black bear to moose and elk, but I draw the line on grizzlies to 100 yards with most any calibre, including the heavies. Closer is beter. A very small sighting/hitting error can get you or someone else in the future in a world of hurt. It is not a thing of power but of precise shot placement.