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+--- Thread: Can a gun barrel be made of aluminum? (/showthread.php?tid=85039)
Can a gun barrel be made of aluminum? - lolitahe69 - 11-25-2021
However, columbium is scarce and very expensive, making it a rare choice for a gun barrel. Aluminum is very light, but it lacks the strength and resistance to heat erosion found in steels. For this reason, aluminum barrels must have a steel liner.