Been shooting a 260 for many years --
A real good rifle if kept in its place --
Shot a good buck at 410 yards a few years back (search Eggers in our Trophy Room) with a 120 BT --I want to add that is way to far for this round and that bullet, just wasnt that deers day to live

Killed several at and just past 300 with 120 - 100 Bts
100 partitions
129 hornadys ( this is my favorite load)

i have found that 300 or a little more is about the max range on deer with the 100-120 BTs but havent shot anything past that with the 129s to know performance