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When I made the 16ga FH, shown earlier in this thread, I had couple bmg cases that were partly worked down, and not yet expanded to 16ga mouth size. With a rim on it bigger than the base which was .770". Well, I've had guys ask if I would ever have bottlenecked cartridge. This led me to a way to do one. I made rim .770, left shoulder diameter, swage case sides straight, and expanded neck for 585" size. Cut the case to 3.7" length, and we have the 585 Hubel Super Magnum. This will be my only bottle necked wildcat. I can make the mag box on the MRC PH long to feed case..Good for over 16,000 ft lbs, Regular 12-14,000 ft lbs. Will that put trex in small letters.....Pictured with 505 Gibbs to which it has nearly identical larger shape and good side taper for easy extraction, with heavy loads.And I can make cases like I do with my 700HE.Case hold 250gr ball powder under bullet. It'll work in FBW Model L..ED |