What was the standard or “usual” factory constriction for a modified choked Winchester 16 gauge? Guns in question are are two Model 12’s, one from 1926, the other one 1936 and one model 1897 circa 1914. All three guns seem to be original and un-altered, all three a marked as “Mod” on the barrels.
All three guns are measuring chokes that are what would normally be considered to be in the IC/Skeet 1 range. Two model 12’s are .008 and the 1897 is .009.
Bore diameters are almost identical…..668 on the 1897, .669 on the 1936, .668 on the 1926.
