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Why are centerfire shell cases made from brass?

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Brass is one of the best suited metals for making cartridge cases because of a combination of characteristics: strength, ductility (the ability to bend and not break), corrosion resistance and reasonable cost. Brass is soft enough to be formed into the many shapes required for different calibers of ammunition, yet hard enough to withstand high pressures when the round is fired in a gun's chamber. Best of all its low cost allows for shooters, hunters and reloaders to enjoy their favorite shooting sports economically.

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