IMPERIAL SPORTING .50" UPWARDS

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500 A-SQUARE

The A-Square series of cartridges was designed in 1974 by Col. Arthur Alphin after a hunting incident with Cape buffalo using the .458 Winchester Magnum. He first designed the .500 A-Square to provide maximum stopping power. In order to gain more powder capacity and more power, all original A-Square cartridges were based on the .460 Weatherby case.