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?