If memory serves, and it's been awhile, mine was cylinder choked, too.
It wasn't a problem at the distances it was used, though.
Maybe it was because, back then, shotguns were only thought of as close range weapons, what ever the ammo choice.
The fellow that I sold it to eventually cut down the barrel to legal self defense length, figuring it would still be around the same choke size.
From my experiences with it, I'd buy another one.
Lock the doors, they're coming in the windows.