Hornady A-MAX bullets are manfucatured using Horndady's Advanced Manufacturing Process (AMP). This allows for the best ballistic coefficient possible. The Secant Ogive Profile delivers low drag and flat trajectories. Swaged lead core provides uniformity and consistency. These BTHP bullets allow for unmatched accuracy at long distances.
Big Book Catalog, Issue:68, Page:540
Sinclair, Issue:5B, Page:109