I need a couple pieces of 9.3x74R brass to prove the viability of making brass to fit a weird .40 caliber chamber in a Ballard I bought this weekend. (Chamber dimensions: .463 head diameter, .435 chamber mouth, 2.125" long, straight taper.) 9.3x74R cases appears to be my best bet for parent brass, hence my request. If it proves viable I'll go ahead with scrounging a supply of fresh stuff.

Nivens McTwisp is leading me down yet another branch of the tunnel!