2015, A single base, short-grained, extruded propellant developed specifically for "bench rest" cartridges, such as the PPC and BR series. This powder was tested at the bench rest nationals in 1990 and subsequently adopted by shooters such as Ferris Pindell and Sal Ventimiglia. 2015 Is extremely flexible giving excellent performance in many cartridges from .22 Hornet to .458 Winchester Magnum.