Just got back from shooting it, full choke would be my guess. The nest is long gone, but it left a rough patch about 2" long all the way around the bore. I will try it sometime.....even if it doesn't shoot so well not a whole lot of utility in an open sighted, single shot .22 Hornet. Even less in a ..25 or .32-20, lol. Either of those would have been my guess also, on a rechambering.

Neat gun though, must be from the 30's somewhere. Like brand new, really. Very stiff on the open and close.

OZ