H414 will get you the very highest velocities with accuracy with the 55's.
We killed a butt load of coyotes in the late 70's through the early 90's with Win 760(h414).
Typical load will start off in some rifles in the 39.0g area while others will go 41.0g. Every rifle, loto of powder is different so be careful.
There is a strange thing that we found with the Nosler 55g Combined Technology bullets. The coating reduces the pressure slightly and we were able to safely achieve 3850 fps out of the 55's through two different rem 700 vssf's with 41.5g of 760.
Bullet jump, primer choice, brass choice are all critical when it comes to achieving tiny groups, so enjoy playing.
Work up to these loads in your rifle, and don't play stupid.