- Product Overview We are proud to offer the Accurate 11 FS in a convenient 8 pound jug. Accurate 11 FS is a double-base, spherical type powder that meters very well. Accurate 11 FS has been developed for high power magnum handgun cartridges and smaller capacity rifle rounds such as the 300 AAC Blackout. This propellant is an excellent choice for loading personal defense type ammunition and increased range rifle cartridges to maximize the full effective range of the bullets. Additionally, Accurate 11 FS has chemical properties that significantly reduce the bright flash signature. Summary Accurate 11 FS is now available from Midsouth. This propellant is an excellent choice for magnum handguns, self-defense reloading and rifle cartridges with a smaller than average case capacity. Accurate 11 FS is a double-base, spherical powder that meters very well and has a reduced flash signature. Specifications and Features: Reduced Flash Signature Magnum Handgun Loads Great for Reduced Case Rifle Loads Double-Base, Spherical Powder Meters Well, Less Clogging