My dad and his best friend hunted with 6mms for almost 2 decades together, each using a 6mm Rem. My dad moved on, but his friend stayed with the 6. Eventually he got each of his 4 boys 6mms. No one ever had any problems hunting elk, deer, antelope, mtn goat. 100 gr Nosler Partitions handloaded. Shooting well is, of course, prerequisite, regardless of caliber. If the guy shooting the bull had hit it well in the vitals on the 1st shot, the bull would not have gone miles.
