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Does anyone know the bore diameter of the model 50 12 ga? I am suspecting it is .735 but only guessing. Trying to save a trip to the gunsmith to get the barrel mic.

TT, you there?

 

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Well, thanks, TT. I have a 26" barrel fixed choke marked Mod. and I checked the choke and it is .726. How can a Mod. be .726 with a muzzle bore diameter of approx. .730? The full 30" choke measures .695, which would be an effective choke of approx. .035.

 

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TT & Only Winchesters - you are both right.

I thought I knew the history of the gun but obviously don't. The choke has been changed to .004 (.726) constriction. My dad purchased this gun new in 1955 with full choke 30" barrel. He then purchased a mod. barrel (he thought), it was passed off to him as a new mod. barrel and he didn't check it or ever shoot it. He didn't have to - hardly ever missed with the full.

Took the .004 choke barrel out to the skeet range last week and shot if for the first time (no vent rib and no sight). It shot lights out with #8, 1oz. loads. Heavy as hell but once you get it moving you cannot stop it - hard to miss although I did manage to miss a couple. It is a shooter and we all know what that means so I think I will re-build it.

TT - it says on the barrel that it is "Winchester Proof Steel." What does that mean? Is this a carbon steel barrel? Compared to todays guns, is the steel different? Something makes it special because it is a real shooter.

 

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Thanks, Winchester.