The Adaptive Tactical Weatherby Vanguard .22 - 250 Remington 10-Round Replacement Magazine lets you convert your Weatherby Vanguard firearm's 4-round box magazine into a high-capacity detachable. The magazine holds 10 rounds of .22-250 Remington ammunition and is made of polymer. Howa Adaptive Tactical Weatherby Vanguard .22 - 250 Remington 10-Round Replacement Magazine - Shooting Supplies And Accessories at Academy Sports