Odd. I was 5-for-5 this past year with three shots around the 25yd range using 140gr CoreLokt with my .260 and none ran over ~10yds. All five were pass-through with what looked to be great terminal performance. I posted my experiences up in the hunting forum. TBH, though, from 120gr up to 160gr (if you load that heavy) should be fantastic on whitetails with the .260 (or 6.5x55SE). I think it'd be more difficult to find a bad combo than a good combo
she was actually 3 for 3 before this one one fell right there cause she shot a bit high and nicked the spine.
the other one we were really lucky to find cause she made a bad shot which enterred in the last ribs
and exited in front of left ham. he ran 800 yard to the wood and 45 min later while driving the wood to find it (no blood trail at all) my sister in law that was on post near where the deer enterred the bush, heard him trashing in the leaves. when i went in 15 min later i found it dead.
the third one she shot perfectly in both lungs (just above the heart) he made it 50 yard with almost
no blood trail and a 1" wound channel only.
so i knew at that point that they were not opening enough but since i had 3 boxes left i didn't change yet. until when we lost that doe last year.
i have to say that she get only 2550 from the muzzle with those factory load. but longest shot was