We shot the Winchester AAA .410 loads with 9 shot. Previous years we used Federal .410s with little success. This year there were multiple winners with the .410. They put a lot more pellets in the cards and good patterns... Sometimes he will shoot some cards when the clay shoot is over but has never done anything with the Factory Loads.
Found this, FYI:http://www.brownells.com/shotgun-pa...pose-card-shooting-choke-tubes-prod25337.aspx