Hey all, I finally got it to a bore gauge. There is no parallel to the chokes at all. So it probably has been trimmed a little bit to open the chokes. Also found a G E Lewis trunk case for a hammer gun for it to live in. After I got the case home I found faintly stamped in the back of it C Lloyd Howell. Not sure who Mr. Howell was but apparently he ordered a new Lewis hammer gun once upon a time.

Last edited by Ithaca Fan; 05/08/10 10:10 PM.