I have a simple question for the experts about the C-Lect choke of my old Mossbeg 500 just purchased last week-end(the denomination is precisely the M550 ABD, a rebranded Westernfield model sold long time ago by the Montgomery Ward stores).
The gun shop gunsmith gave me a weird explanation of how it works..it told me there is a mark on the twist sleeve edge (that I could barely see and I think is just a scratch mark....) that has to be brought in line with the Full, Mod or Cyl marks on the little plate on top of the barrel muzzle. But I think that is rather the edge of the sleeve itself that has to be brought in line with these 3 marks (the 3 marks on the plate, infact, are 3 small segment parallel with the twist sleeve edge and placed at different depth).
Fully twisted rearward should be full choke (actually even more restricted because the sleeve edge pass the full mark), twisted full forward is open barrel (again, like the full choke mark, the sleeve can be twisted forward way over the Cyl mark, basically you can unscrew the sleeve off).
The "mark" on the edge explanation by the gunsmith doesn't make sense to me because the twisting of the sleeve to align this hypotetical mark would be very little.
Unless that mark on the sleeve, if it is a specific purpose made mark, has to be aligned with the labeled marks on the plate once the sleeve edge is aligned itself with the plate marks...
I apologize for the long and winded message (trying to describe with words a physical operation is hard ;-) ) and for the question that probably will sound stupid to many people but I just want to play safe and I do not want to ruin my gun or, worse, get injured....