Pattern Testing the Savage "Four Tenner" .410 Shotgun Gauge Adapter

In this video I pattern test a Savage Arms "Four Tenner" .410 shotgun gauge adapter in a 20 Gauge shotgun. The test gun, a Baikal IZH 27 EM-1C has 28 inch barrels with screw in choke tubes. Four different chokes were tested - cylinder, improved cylinder, modified and full choke. Patterns were fired with Winchester 2-1/2" shells loaded with #9 shot at a target 15 yards away.