Originally Posted By: RMC
Lagopus Is 13 over 1 a date code? If not where might the code be found? Randy


Hi, the 13 over 1 in a diamond is the bore size. This mark was used under the 1925 Rules of Proof. If the diamond had a 12 in it, then the bore was .729, 12 over 1 a bore of .740, 13 over 1 .719 and 13 .710

The date code should be stamped on the bbls.

All the best!

Greg

Gregory J. Westberg
MSG, USA
Ret