That seems pretty open to me. Wondering what everyone else has for theirs?

I had a Steel Shot Special that a friend of Bob now owns with factory IC/M chokes that measure .006/.011.

I, too have a couple 12ga's choked IC/MOD with numbers consistent with Bob's.

As best I can gather, the 12ga Q1/Q2 chokes measure .003/.006 give or take. It would be interesting to know how they compare at the pattern board considering how open the IC/MOD chokes are.

This thread and a rainy day caused me to pattern my recently acquired 12 ga with 28" IC/Mod chokes. At least that is how they are stamped. I have measured them at .006/.012. I did not have enough time to do a thorough job of patterning but enough to get a good feel for how the chokes perform. I used loads that I have patterned in other guns so I have a feel for the loads capabilities. The patterns achieved were consistent with the choke measurements. The open choke came in at a strong skeet and the tight came in at light modified. A delightful clays combination.

12-ga. Parker Reproduction Sporting Clays Classic
* 28" bbls.
* Factory 3" Chambers (stamped 2 3/4")
* Factory Winchester Winchoke screw-in choke tubes.
* .734 bores
* CYL = .000
* SK = .003
* IC = .009
* M = .016
* IM = .019
* F = .029
* XF = .039