i still haven't seen the reason to switch from a 77gr tmk either loaded hot or from Black hills
how i see it they are 450 yard guns. 6arc, 6.5 grendel, 6.8 spc aren't vastly improving on what can be done with a 77..
the 22 grendel and lvr with 75's is a hell of a platform in theory
but if im plus side of 450 i'm probably outpacing my hit ratio with a gasser anyways.
if i need more i grab a manual operated device and sling great bullets and have a lot simpler recoil impulse.
inside of 450 i put the TMK through the pump house and hooves go skywards real fast.