On the Browning 16s, the chokes I have and those in the hands of others I know are significantly mismarked. For example, mine measure: I/C = .006” (about right); M = .010” (pretty loose); F = .042” (way over choked).
Performance of the more open chokes is about what I expect from those constrictions. Briley and others will happily sell you others to fill in the gaps.
Last edited by GF1; 02/13/21.
