As the name implies, Benchmark Extreme Extruded propellant was developed for precision cartridges. As such, it is ideally suited for bench rest and small varmint cartridges like the 6mm PPC, 22 PPC, 6mm BR, .223 Remington and .222 Remington. Additionally, it performs well with match bullets in 308 Winchester, especially the 150 – 155 grain versions. With small, easy metering granules it will flow easily through powder measurers. A good choice for loading .22 center fire and .30 caliber rifles.