Gold Medal primers are manufactured to exacting tolerances, providing the same high-quality components and optimum ignition that make Federal Premium Gold Medal cartridges the choice of match shooters everywhere. This primer is compatible with Large magnum pistol calibers like 500 Linebaugh, 475 Linebaugh and many more. Specifications: Caliber: Multi-Caliber Model: Premium Series: Gold Medal Firearm Type: Handgun Size: Large Pistol Mag Dropship Restricted: Yes Quantity: 1,000