Slow burning powder for Magnum cartridges and calibers with large case volume and comparatively small bullet diameter. Burning speed of N160 is close to Reloder 19, Winchester WMR and the various 4831?s. For example some ideal applications are: .243 Winchester, 6,5-.284 Norma, 7 mm Weatherby Magnum, .300 Winchester Magnum, .338 Winchester Magnum and all the Winchester Short Magnums.