Hawk1: Many years ago (28?) I brought online a full custom pre-64 Winchester Model 70 in caliber 240 Weatherby Magnum - especially for Hunting Antelope and long range Coyotes with.
It has a 27" Hart heavy stainless barrel - it is deadly accurate and incredibly efficient ballistically with my chosen Antelope bullet.
I have a Leupold 6.5x20 variable scope on it and what a perfect caliber/set-up for Antelope Hunting it is/turned out to be.
In fact I am going to be verifying zero with it here in the next couple of weeks as I was lucky enough to be drawn for an Antelope tag this season.
Good luck in your search/inquiry.
Hold into the wind
VarmintGuy