Never used either the BlR' s or the 45/70 on Elk or Moose just on poor unfortunate deer and it knocks the crap out of them. Weaver K2.5 is one sweet scope 4" of eye relief and great glass.... As soon as I get around to it I have to mount one on my 45/70. Yep if your going to use it in the mountains get the BLR, a little handier and it ought to bowl over anything you run into ...