I snagged a B-Mag, with the stainless heavy barrel for $180(on clearance)at Field and Stream last year. Not sure about coyotes, but it's a hammer on fox.
It shoots 1/2 inch groups consistently in calm conditions at 100 yds. Add wind, and that's where you find the Achilles heel of just about any 17 cal bullet. I like the WSM for sure. I'd opt for the 20, or 25 grain bullet though. The 20 grain hollow point sure puts a whollop on them!
Only thing I did to the rifle was bedding and free float.
Good luck
