Chris:

I take it there isn't a gauge stamp? Strickly by the numbers and using 708lb for lead with maybe some gravity units, the 0.685" would be 14.5 bore. The English Proof Act of 1868 give 14 bore at 0.680", 0.690" and 0.693" and I'll assume the Germans followed suit. The 1887 rules gives 0.685" as 15/1. About how old is it?

Kind Regards,

Raimey
rse

Last edited by ellenbr; 05/22/08 09:43 PM.