I like the 260 and use it for across the course and long range, but have concerns about using it for long range. With 140 gr bullets, at about 500 yds, it drops below one thousand foot lbs of energy. That is like using a 30-30 at 200 yds.! If you are going to carry a 10lbs rifle up a mountain I have a few thoughts: Go to a larger caliber, heaver bullet and more powder, have the outfitter pack the rifle up to the top of the mountain for you or hire help to carry it. If none of this appeals to you, use your Winchester 30-30 with iron sights and learn how to stalk.