nikon monarch with the BDC comes in 3-12, which is a great range IMO, esp since talking grizzly, and 12x is still plenty powerful for long range, and 3x is still relatively low power, certainly more so than 4.5x,

Have a vx-iii 4.5-14LR, on my antelope rig, great setup.

Also have had nikon monarchs, also very nice. Wasn't crazy about circles on the BDC vs. crosshairs, but that's your decision....