This thing had been sitting in a local gunshop for at least 20 years, and I'd always admired it. Finally went ahead and dug up some trading material and got it. Bore diameter is 2 3/8 inch, so racquetballs fit perfect. I'm sure if I was ever inclined to do a "warshot", I could fill one up with dove shot or sand. The Dixie catlog says to use 2-4oz of powder, but I build an insert that holds the aforementioned film canister's worth of powder. Even that was impressive. The whole thing weighs about 100 lbs. I've been lifting weights lately, and actually managed to get it in my truck bed without help! ;-)