Stan Sorry but you are mistaken ,regulation is only concerned with the patterns I have previously stated. It is not adjusting the barrel to shoot to a point of aim ,we are taking side by side here . As previously stated some makers of Us are attempting to address this problem and because of the spacings at the muzzle 410 is more likely to shoot to point of aim than a 12 bore.

Gent harsh words have been said on both sides. It is not my intent to antagonize and I may not be the best at putting thoughts into words . Niether would I make any statement on this or any other site without some reason to back it up .