You don't "Sight In" a Damn' Shotgun....You PATTERN IT. If it throughs a good pattern with whatever but shoots high/low..left/right...You adjust the Drop or warp the Barrel. And optical sights on a Shotgun....God only mean't those for Deer Slug Hunters!! The Hunting World is Suffering....
Reckon how many turkeys you done missed with that warped barrel Festus?
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