In my recordings of serial numbers and the different characteristics of Hunter Arms box locks including ones made for other manufacturers, the latest serial number I have is F203868 and has a 2 screw receiver side and 2 screw floor plate. This is a 20 gauge made in 1941 and by now will have 2 3/4" chambers.

For your 16 gauge, if it is 1936 it would be early for 2 3/4" chambers. Also for what it is worth, my A Zoom 16 ga. snap caps (4)measure 2 1/4". I would recheck yours.

Last edited by JDW; 12/22/16 07:19 PM.

David