The 30 Caliber Bellm Wildcats
There are 4: .300 BS, .308 Bellm, .308 Bellm #2, and .30 Bellm. (Only the .30 Bellm requires custom dies.). 300 BS (Bellm/Stewart) using .307 Win brass or .444 worked back to 2.025″ and .300 Savage dies. Basically same as parallel development by Don Bower, his .300 Super Bower, which is different from the .30