My Simson Suhl 12-bore, plain, but tightly choked.

A problem with BBs is they work well if shooting a fox in the front. Or broadside front. Shooting from behind is far less effective. And to be sure multiple shots may be required to stop the fox.

My story from last year is on this link:

"Traditions of Yesteryear" article, Stockwell Hunt Club, Barossa
http://forums.nitroexpress.com/showflat.php?Cat=0&Number=352822&an=0&page=0&vc=1