Hi all..they say curiosity killed the cat. Good thing I am not a cat. I am curious to know the choke on my Pedersoli SxS. I have now measured the rt. barrel 1.5" down muzzle to be .690. At the end of the muzzle .690. The left barrel measures 1.5" down .682 At the end of the barrel .673.. So far I am not able to locate a machinist with the tool to reach on down to measure what would be the bore diameter. Nominally it is stamped on the barrel to be 18.3 (which is .720"). Is this enough information to make a judgment?