This revolutionary, spherical powder was introduced by Hodgdon in January of 2012. This extremely versatile rifle propellant was developed as a copper fouling deterrent as it incorporates in its formula CFE or Copper Fouling Eraser, an ingredient initially used by the military. The resulting powder produces longer periods of consistent accuracy with less barrel cleaning required for many popular cartridges such as the 223 Remington, 22-250 Remington, and 308 Winchester. This powder is ideal for the Match, Varmint, and AR shooters. Important Information: 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.