Free: Contests & Raffles.
For an AR platform cartridge for coyotes, I'd look elsewhere. Unless most of your shooting is in more confined distances, it would just seem that the smaller bores would better serve you. That said, I think that bullet selection is a bigtime factor in fur damage. BTs and VMax are a bit on the sloppy side If just wanting something new and different it would be a fun one to tinker with though and they make Lapua brass for it