This cartridge features a heat-treated aircraft-grade aluminum casing. Aluminum is less expensive to manufacture than brass, which is subject to fluctuating market prices for copper, although CCI claims that this round offers no difference in performance from a brass cased cartridge. Furthermore, this round’s casing only weighs one third as much as brass, a weight difference you may appreciate in your everyday carry. Finally, aluminum’s natural immunity to rust makes this round ideal for use where moisture may impact a steel cased cartridge’s integrity. If aluminum casings are good enough for the 120mm rounds used in the Abrams tank, then it’s certainly fit for your pistol!
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