Buckstix - you certainly have an eye for these don't you!

Could use it with slugs in the 16g side if you need too - but only BP or is this Nitro proofed?
Marvellous piece, beautifully done & kept.

Good thinking there Lancaster about the 9.3x74mm cases, at least the length will be correct if not the head stamps!
Bertram Brass does make the 11.15mm brass quite a few, but not in a 65mm length!