hey jeepkid,
Happy New Year to you and your family.
There is one product I know of which can be used on new factory barrels, although I have never use it.
http://www.cabelas.com/prod-1/0003181214206a.shtml
I read an article on using this stuff and it improved the rifle's MOA by almost 40%.
What have you been doing with the coyotes you got?