What about a tight crimp vs a moderate crimp, resized brass vs non-resized.....enough to prevent telescoping.
My goal is for case capacity loads, i.e. 1,200fps (240gr bullets) to 1,300fps (210gr bullets) to 1,600fps (200gr bullets) for reasons it would take forever to explain. My purpose is not to create 44 magnum powerhouse loads or I would just get a 44 magnum.