Bill, typical duce loads run from 19.5-20.5g of H4198, Rem 7 1/2, with a 52g benchrest bullet. Seat the bullet to just touch the lands, play with .005 and .010 off the lands.
I shot the 45g sierra spt, 50g sierra blitz, 50g sierra spt, 52g speer match, 52 & 53g Sierra match on coyotes that all worked very well.
Way back when benchrest shooters were pulling the 222 barrels off their 40x's and going to 6 ppc's, I was buying every used Rem 40x in 222 I could find for $50.
If you can find any 52g speer benchrest bullets, you will love them as they do not break the bank and are accurate.
If you like blowing up a coyote, then a max load of H335 and a 55g Sierra lead tip blitz will just blow your mind in accuracy and terminal ballistics.