I agree with 400 Nitro Express that they are/were scattergun tubes and the "W", which looks like a backwards "J" "1" is actually an "11" for 11 bore which would make it a 10 bore struck-up and the load data seems to indicate it, possibly for a 2 7/8" cartridge? I have a set of 10 bore H&H tubes with a similar stamp.

Kind Regards,

Raimey
rse

Last edited by ellenbr; 11/13/08 09:29 AM.