I have a Winchester Model 12 given to me by my uncle when I was very young. It was made in 1957, it is the 3 inch Heavy Duck model with a plain 30 inch full choked barrel. It was a duck hunters dream back in the day, we hardly ever used 3 inch shells back in the days of lead, but my uncle was convinced the heft of the gun contributed to better follow through on wing shots. It is such a well made gun that even after all these years it is still a 95% or better gun(of course I have not used it much since steel, so there are a number of decades where it was a safe queen only). I have been unable to use it duck hunting since the mandated steel shot became the law of the land. I didn't want to risk damaging the gun. However, that is fixing to be remedied. I recently read a thread about a guy having his chokes opened up, it motivated me to look into it. Local gunsmith is going to open the choke up on it to a modified choke. I don't want screw in chokes, I never change chokes, I shoot steel with a modified choke, period, so I have no need to go to the expense of screw in chokes. Even the guns that I own with screw in chokes are all using modified tubes, I know where the chokes and wrenches are, I just never change chokes. When I shot lead, I shot everything on a full choke. Now I shoot everything on a modified. I know what all my guns can do on a modified and I don't see any reason to complicate matters. The gunsmith is out of town until next week, but I am taking it to him Monday. He is a first rate, old school gunsmith, comes very highly recommended by people who know what they are talking about. He is from out of town, but I have heard his name over the years from other gunsmiths that I have known. My current gunsmith subs out choke work to this guy and says he is very good. My old gunsmith from 30 years ago(now deceased) spoke of him highly as well. I can't wait to get the old girl out and duck hunt with her again. I intend to rotate her and my A5 during the early season and switch to my Gold Hunter for sea ducks(because I don't want to take either of my babies out on salt water hunting trips).