Just returned from a cow elk hunt east of Roundup MT. Used my Mauser M-18 in 6.5 PRC and 143 grain factory loads to kill big old cow elk at 240 yards. One of the five guys in camp had a 6.5 Creedmoor that had accounted for six one shot kills on bull elk, mule deer and black bear in the last two years using the same factory load I used. No flies on that round for people who can shoot. Those six one shot kills were within 300 yards.