73 Caliber (12ga.) Lead Balls The biggest balls of them all

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12 Gauge .73 Cal Pumpkin Ball Loads Range Testing

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Sellier & Bellot Rubber Ball 12 Ga, 2.625, 25rd Box - Impact Guns

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Lead shot used for a variety of purposes such as filling cavities with dense material for weight/balance.

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Hornady Critical Defense .410 Gauge 2 1/2 in Shotgun Slugs Ammunition 86238