TYPE Flattened Spherical Double Base Powder BURNING RATE Extremely slow PERFORMANCE BENCHMARK Norma MRP2 ? IMR 7828 / Vihtavuory N570 APPLICATION Magnum powder, best suited for any type of magnum or high power rifle cartridges , in different calibers, with high capacity cases. High density powder, with optimal metering. Perfect use with volumetric powder measure. Needed Magnum primers and heavy bullet crimp, if possible. BEST USED FOR 243 Winchester; 25-06; 257 Wby Mag. ; 270 Winchester; 7x64; 7 Rem. Mag. ; 300 Winchester Mag. ;