I was browsing Cartridges of the World and the 14.5 Whisper by JD Jones caught my eye on page 228. The case is a shortened 577 cases to just over 2" and it is claimed to push a 750 grain projectile to 1600fps. It is stated that this is a good cartridge for the Ruger #1. In my humble opinion this would be a good cartridge to push 650 grn woodleighs to 1650-1700 fps. Recent photos of these bullets recovered from N.T. boars from a double 577 2 3/4 really impressed me. I can not afford a double in this calibre and I do not want a 3" version. In a 10 pound rifle, recoil would be about 55 pound. Has anyone had experience with this cartridge.

577 Snider brass and dies are readily availabe here. The Snider case is 2" long and might be suitable in a Ruger #1.