Winchester Super Field Powder is a top-of-the-line reloading powder preferred by many shooters. This product is backed with a solid guarantee from a company with more than 100 years in the business. The powder is carefully engineered and must pass strict quality control checks.The Super Field Powder is smokeless the ideal propellant for Winchester 20 gauge AA target loads. For people who want maximum velocities for 12 gauge loads of 1 1/8 ounces and 1 1/4 ounces this product is ideal. This powder outperforms in .40 S&W .38 Super and 9mm pistol loads.