410 Smokelss Shotshell Powder is the only flake powder specifcally designed for the exacting needs of .410 skeet and field loads. It is the cleanest burning .410 powder available and is more efficient, has lower powder charge weights, and provides optimum loading characteristics. The superior ballistic performance creates perfect patterns. It has consistant performance in any weather, shot after shot, lot after lot, making it the reloading powder of your choice.