There is a .243/6mm minimum for game animals only. There is nothing that states there is a minimum/maximum for non-game animals; coyotes, p-dogs etc...If you ever make it up the Powell way let me know maybe we could shoot sometime I go to college here.
Did you know Rich Bartman. His widow lives in Powell, he was a great guy. I knew him from Specialty Pistols.
We named our annual antelope hunt in honor of him. It will take place in a little over a week in the Casper area.