I've got a pair of the Bostitch S19 automatic hog ring pliers that I believe uses a 3/4" ring which I bought from Butcher Packer years ago.
When using them on a large beef bung cap, they really don't go around the twisted end. Instead, the ring ends seem to cut into the casing causing a tear in the twist. It's almost like the ring is just a tad bit small for the twist of casing. Any recommendations from you big casing pros?
Hog Ring Pliers
Bob, that sounds good and using the butcher's knot.
https://www.youtube.com/watch?v=vsKVXjHsdKg
https://www.youtube.com/watch?v=vsKVXjHsdKg