John: the following is from a thread last fall in which I sought length of choke constriction measurements from the 16ga Society, PGCA Forum, and here. Hard to determine alot from this limited sampling, but finding choke taper more than 2 1/2 to 3" suggests, but does not confirm, uncut brls.
Researcher and others from the PGCA responded to a request for information:
16g Parker guns made from 1891 to 1927 with chokes from .002 to .040 all demonstrated a choke length of 1 1/2" to 2". Dave M provided some excellent data from the PGCA showing that in full choke 12g. Parkers, the choke was bored with between .007-.010 constriction between 4 and 2 inches with the remainder of the constriction in the last 2 inches. This is similar to what was found in a limited sample of 12g. Lefever, Remington, and Ithaca guns. A single Baker 16 had a 1 1/2" choke.
It appears possible for a 16g Fox gun to have had the brls cut 2" and still have some choke. Fox 16-gauge doubles made in 28', 33', and 37' were found to have chokes about 3 1/2 inches long in the M/F choked barrels BUT a 36' 32-inch barrel A-grade had full chokes of only 2 1/2 inches. A 1937 16ga Sterlingworth choked .004 & .014 had constriction beginning 1 7/8" from Rt muzzle, 2 1/2" from Lt.
Last edited by revdocdrew; 01/18/07 11:06 PM.