Let me know if you want to try some of the 311299s - I have a bunch cast up in Lyman #2, including a bunch still "as cast" so you can customize your size and lube. They drop from the mold at .3105"-.311"
Thank you, sir, I would like to try a few. My .30-40 is a converted .30-30 T/C Contender Carbine barrel that shot patterns. Uncas and my wife conspired to get it rechambered as a present. It is now very accurate.
Ed