Hodgdon Perfect Pattern is a fast-burning, flattened, spherical shotshell powder designed for light and extra light field and target loads for the 12 gauge shotgun. Perfect Pattern's geometry and density results in excellent ignition, superb metering and low charge weights that deliver consistent patterns with mild report and low recoil. Warning About Smokeless Powder: Do not exceed the loads displayed in the reloaders guide. Never mix any two powders regardless of type, brand, or source. Never substitute any smokeless powder for Black Powder or any Black Powder substitute.