585 HE --- Super Strong -- If you've followed our work in the 12ga FH thread you've seen our 585 HE cartridge and its development. We have barrels of cases and more coming. We have put it in all kinds of guns, and tested it with 650gr bullet over 3000 fps as heavy load to test the brass, and also for lighter game like deer and hogs and target fun we found that some of 440gr- 540gr 58cal Minie bullets work great First picture shows it next to 505 Gibbs, it has same overall loaded length as a Gibbs. Holds up to 190gr ball powder. Next pic is a barrel of cases Third representative of types of guns we have it in.Ed . . .