They sell barrels everyday -that's how i see it..
Powders recommended by nosler for the 125 nbt -300rum loads are h-4350 ,h-4831 and h-1000 -so vitavouri powders in those rate of burn powders n-160 n-165.Velocity is in the 3700-3800fps range.
The 300rum has such a huge case capacity that as stated by others -will fry your barrel in about 800ish rounds.
Not to tell you your business but i'd look at the nosler 150gr ballistic tip.
3550-3600fps w/a 150nbt will be about the least fur friendly load a man could come up with for groundhogs/coyotes.
I'd bet that you could get surface type [although very big surface type wounds]wounds with the 110vmax w/a 1-10" twist.
I remember a guy posting pictures of a coyote he shot w/a 150nbt 300rum -pieces of coyote the size of your fist laying in a red funnel shape behind the dead coyote.The moderator took it off immediately -not here at the fire by the way-.
It was shot quartering away and the bullet exited starting at the back of the ribs to the brisket --right front leg and shoudler literally gone.
The 180nbt or 178amax will also hammer small critters.
Good luck -Mike
Last edited by ol_mike; 07/11/09.