Chamber Length

[J.B. Books]

Bill my point is that if Parker did deliberately (rather than "market" such information) make chamber lengths 1/8" shorter than the intended shell there is little evidence I have seen of that in 10 gauge where far fewer options for shell length were available. My question is, where are the 2 1/2" 10ga guns (for 2 5/8") and 2 3/4" for the 2 7/8" shells. All the guns I have seen for myself measured a true 2 7/8".

We all know there is little harm in shooting a slightly longer shell than the chamber length. We also know there was some advertising of a benefit to holding chambers 1/8" short. We also know there were a lack of standards and many options in the 12, 16 and 20 gauge shell length. However we also know Parker Brothers were very good at their marketing and I still believe guns were chambered for a specific length shell.