Hornady Manufacturing Company :: Bullets :: Rifle :: Choose by Caliber :: .458 45 CAL :: 45 Cal .458 500 gr DGS®

That is a 500 gr solid bullet. DGS stands for Dangerous Game Solid. They are used when using a rifle to hunt large, dangerous game. If a person is taking on a bear with a pistol, he needs the equivalent to that bullet in his pistol, a non-expanding solid for the deepest penetration possible.