FYI - #s on gun are of course in mm; James converted them to inches above.

Here is one of several choke tables available for reference:

http://www.hallowellco.com/choke_chart.htm


It is a bit unusual to have two complete sets of #s on each barrel.
Is chamber still 2.625"?
If not, maybe it was re-choked when it was lengthened to 2.75"?





Always looking for small bore Francotte SxS shotguns.