Originally Posted By: L. Brown
RWTF, on the Ithaca choke numbering system, 4 = full. 3 would be improved modified.

You find some unusual choke combos on some of those guns. I once owned a Flues 16 that was 0/4--cyl/full.


One of my current Flues is a 6 lb 7 oz 12ga that is 0/4.


Mike