TYPE Flattened Spherical Double Base Powder BURNING RATE Medium/slow PERFORMANCE BENCHMARK Norma 203 ? IMR 4320 APPLICATION Multipourpose rifle powder, best suited for various cartridges, in different calibers, with medium capacity cases. To be used also in old military rifles. Needed Magnum primers and bullet crimp. BEST USED FOR 22-250 ; 7x57; 30/30 W ; 308 Winchester; 7,5x55; 303 Br. ; 7,62x54 R; 8x57 JS ; 9,3x62; 9,3x74R; 45/70.