What energy does an arrow have?
I am not praising the 260 for elk hunting, I think that there are more appropriate rounds. I have however killed a few cow elk out to 300 yards with my 25-06. I own a bunch of magnums in 26, 28, and 30 caliber, but my main elk hunting rifle is the stainless feather weight in 308 winchester. I love the gun, it fits and I can off hand, a 9x10 piece of steel at 400 yards consistently.
Now talkin 260, I had a special type of hunter several years ago, he was 12, it was 25 below zero and he blasted his first bull elk at 250ish yards. It was a chest shot, and although the bull was dead on his feet, it did take about 30 second to a minute to die. Thank god, because in that mad rush of emotions and no experience. This stud muffin little man forgot about his second shot and one breath on the scope put us in a situation. The photo made second place in the Montana Outdoor Radio show photo contest. I wish I could show it off, but I am not so savy with this internet dealy. What a proud kid! My knowledge of this round is, this little 12 year old was able to hit his target and kill his elk.
Happiness is a warm gut pile