Gents:
I have posted some of my ballistic data on my website for my 4-bore Hughes. I was going to shoot more but winter set in here in Alaska and now I have decided to sell the rifle. Go to calpappas.com The data is on the double rifles page and the rifle is both on this page and the for sale page. Enjoy the pics. My bore diameter is .975 or an actual 5-bore and a round ball weighs 1400 grians. A 1 inch ball should weigh about 1500 and a true 4-bore at 1.052 should weigh 1740 grains. 16 drams or about 440 grains of FFg is the worst kicking rifle I have ever shot! An article on the 4 will appear shortly in the African Hunter and the Black Powder Cartridge News.
Cheers, all.
Cal