Any one have a table that shows the actual measurements for the various chokes such as IC, Mod. or Full by gauge?

465H&H

The actual measurement of the choke depends on your bore diameter.

Chokes usually go like this:

Cylinder= bore diameter or no choke
Skeet= .005" tighter than bore diameter
Improved Cylinder= .010"....
Light Mod= .015"...
Mod=.020"
Improved Mod= .025"
Full = .030"

Etc....

Depends on gauge as well

AMOUNT OF CONSTRICTION
Ga Bore Full IMod Mod Sk2 ICyl Sk1 Cyl
10 .779 .035 .025 .020 .015 .010 .005 .000
12 .729 .035 .025 .019 .012 .009 .005 .000
16 .667 .028 .020 .015 .010 .007 .004 .000
20 .617 .025 .019 .014 .009 .006 .004 .000
28 .550 .022 .016 .012 .007 .005 .003 .000

Excuse the poor formating this site doesn't allow tabs or multiple spaces

Thank you 510wells, that is exactly what I was looking for.

465H&H

Bore diameter, especially 12ga., will be different if you have one of the newer overbored guns. Invector Plus tubes, etc.

Steve