Assuming hypothetical .732" bores adjacent choke area and exit diameter muzzles as .718 and .719" respectively, the barrels would hypothetically be choked 14 and 13 points respectively. Which they ain't so they also ain't. I'd say the thing's choked cylinder and 9 points on the front end and has big jugs at the rear. Perhaps aggressive pit removal leads to progressive choking. Maths can be difficult what with the possibility of getting adtraction mixed up with subdition. Could be the unmistakable is the number of inches of length removed from barrels.
jack
