Sorry, but I still see this as a "everything old is new again" subject. There were over 2 dozen different kind of 12 bore 100 plus years ago, shooting almost 100 different loads and bullets. The only real difference here is the way the cases are made and the use of sabots. Greener and others perfected it a long time ago.
(12 gage from hell??? Hey,12 bore isonly a
medium bore rifle!
)