Originally Posted by MtnBoomer

Doesn't matter at 670?


Nope doesn't matter.

The .300 Savage the worst pick of all the cartridges you listed after the 5.56 for where I live and hunt. I'll admit it's most limited, but still capable of taking game in the conditions you listed. Like I said not the most efficient way to get there, but it can definitely place a bullet successfully into the vitals of a big game animal at 670 yards.