Jake: Here's a copy of a post from a previous thread about choke length-
"Researcher and others from the PGCA responded to a request for information in regard to length of choke constriction:
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 1 1/2".
It appears possible for a 16g Fox gun to have had the brls cut 2" and still have some choke constriction. Fox 16-gauge doubles made in 28', 33', and 37' were found to have chokes about 3 1/2 inches long in the tighter 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."
Walt no doubt will be along with the answer.
BTW: on p. 394 of the new L.C. Smith book, it shows a 1 9/16" choke taper leading to a 1" parallel section.
Last edited by revdocdrew; 02/12/07 01:46 PM.
