This is a cartridge developed by Dale Storey, a smith in Casper, Wy. I talked to him this week and he developed it to overcome some issues in chambering and forming for the Ackley versions. I can fireform 7X57 factory brass and use 7X57 Ackley data to start. Since the rifle came with dies and a hundred used cases, that made it an affordable wildcat. I'll order some new brass and just go with Ackley data. I don't need to hotrod it since I have a 280 Ackley, 7 Gibbs and belted 7's if I need more.
