Reloder 15 is the best all-around medium speed rifle powder providing excellent .223 and .308 caliber performance. Selected as the powder for U.S. Military's M118 special ball long range sniper round. Known for having a broad range of calibers in medium rifle, Reloder 15 is great for high velocity varmint loads and is consistent in all temperatures. Reloder 15 powder is ideal for use in most medium caliber rifles but can also be used in silhouette recipes. Reloder 15 powder is ideal for use in most medium caliber rifles but can also be used in silhouette recipes.