2460 Accurate's Ted Curtis' favorite powder, this medium-burning Spherical propellant is increasing in popularity with NRA, IHMSA, and bench rest shooters. Useful in a wide variety of cartridges, it is slightly slower than 2230 and shows a small pressure advantage over 2230 in bores of 7mm and over. An excellent choice in .308 Winchester, 2460 is appropriate for use with M1 and M14 (M1A) service rifles.