Originally Posted by
JSnover
Ok, so there are at least two pressure testing systems operational in North America, three if Lyman owns one. I doubt the author has tested as many loads. His data is accurate and correct, but only as far as it goes. In fact - on that same thread - you had this to say: "This is not necessarily true, in fact in many instances just the opposite is true." So which is it? Are pressures higher with lead or with jacketed? I'll help you out… It depends.
Pressures are generally higher with cast but every time I flip to a different cartridge in my manual I manage to find a case where the opposite is true.