New to Cowboy shooting but not casting. I've got about 600 lbs of pure lead sheeting used in hospital X-ray room walls and 30 lbs of tin cut wire pieces from Rotometals. Trying to figure out what mix, between 1:16 to 1:40, lead to tin ratio for Cowboy loads running as slow as 500 fps from the Ruger Vaquero's to 850 from the 20" Uberti 1873. I'd like the Tin to last as long as possible but don't want to go so low on the tin mix I might get leading.
HBO (Help A Brother Out)