If you don't want the hides , then use the 90 gr Sierra . The best varmint bullet in the 270 is the Hornady 110 BTHP. Very few Varmint Bullets out there, that will kill Foxes and not destroy the Pelt regardless of cal. Varmint cal for Foxes start and end with the 17's

A Doe walks out of the woods today and says, that is the last time I'm going to do that for Two Bucks.