300 Blackout Brass Casings

Although the .300 AAC Blackout is gaining popularity with many shooters and manufacturers are following suit, it's usually far more economical to reload your own ammo if you have the brass available--and we can help you with that! Start here with these 300 Blackout brass casings for sale.

Primers for the .300 AAC are typically of the small rifle variety.

With the proper configuration, you can create subsonic .300 AAC loads that work well with suppressors and still cycle the action of your AR-15.

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  1. Winchester 300 AAC Blackout New Unprimed Brass Casings - 100 Casings

    $49.85

    In stock

    Manufacturer Winchester
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU WSC300BLKU
    Quantity 100
    This is not loaded ammunition. These are cases and cases only: precisely what handloaders need to make quality 300 AAC Blackout ammunition, but totally useless to shooters who don’t know their way around a reloading press.

    300 AAC Blackout ammo is relatively expensive compared to American AR enthusiasts’ preferred 223 Rem and 5.56x45. So how can you save money on 300 BLK ammo? By getting incriminating information on an ammo manufacturer executive, and then using it to blackmail him? We don’t condone illegal activity here at Widener’s, which is why we recommend ordering Winchester’s premium component cases instead!

    These shiny new cases are fresh out of Winchester’s factory. They don’t have primers, but that just gives you total control over which kinds of explosives you’re working with. Concentric, uniformly thick walls ensure proper bullet seating and superior accuracy, and careful inspection guarantees positive chambering and seamless extraction in all makes and models of rifles. Can’t go wrong with the Big W!

1 product