Accurate Powders is a company that definitely lives up to its name. The complete line of smokeless powders for handguns, rifles, and shotguns is engineered and lab-tested to maximize the precision and performance. Accurate uses the best ballistic technicians and the highest quality components together to assure that every gun is better served with Accurate Powders. Accurate No. 7 is a double base, ball propellant originally developed for high intensity cartridges. Originally introduced to reloaders in 1983, No. 7 has become a popular powder for IPSC shooters. It is also a good choice for magnum handgun cartridges when slightly less than full power loads are preferred. No. 7 is an excellent choice for high performance semi-auto handguns such as the 357 Sig, 38 Super, and 40 S&W. No. 7 is also a cost effective solution in larger magnum handgun calibers. Warnings from the Manufacturer: Do not exceed the loads displayed in the reloaders guide. Never mix any two powders regardless of typ...