This video demonstrates the process of sighting in a Vortex Viper shotgun red dot sight on a Mossberg 500 20 gauge shotgun. The instructor, Caleb from Brownells, uses Federal Grand Slam turkey loads at approximately 25 yards, emphasizing the importance of a stable rest and using a target with a shoot-n-see overlay. He details how to measure shot patterns, calculate optic adjustments using the manual's chart, and make incremental changes to achieve a precise zero. The process highlights the tactile nature of the optic's adjustments and provides practical advice for shotgun hunters and shooters.
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