The 296 powder was developed for the 357 Magnum and 44 Remington Magnum cartridges. Winchester also recommends this propellant for use in 410 Bore AA loads..
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Please note, powder ships separately. $19.99 Haz Mat plus $9.99 Shipping fees apply. Powder cannot be returned, 48 lb max, ground freight only, adult signature required. Sorry no shipment to HI or AK.