A very slow-burning powder for large, magnum style cases, particularly when heavy bullets and high velocities are required. A perfect selection for the 270 Winchester, 7mm Remington or Weatherby Magnums, 300 Winchester, RUM or Weatherby Magnums. A very good choice for the 338 Lapua Magnum when using lighter bullets of 250 grains or less.
Big Book Catalog, Issue:68, Page:544
Sinclair, Issue:5B, Page:094