I would think that any rim fire would lead to some pretty unethical kills / wounded goats - 22Mag would work if you could get in close but you would want good shot placement which doesn't mean fast shots on a group.
Can he set up and shoot from further away with a small suppressed center fire 223/243/ 6-6.5mm? otherwise a lever action might be a good alternative for 100m lots of lever options will work
Bookmarks