The barrels are usuallyconstructed from brass, or a tungsten alloy. Brass is cheap but light andtherefore tends to be very bulky. Tungsten on the other hand, is twice as denseas brass although tungsten is very fragile and 90 percent of the barrelcomposed of tungsten and the rest made of silver or nickel. I suggest you tobut tungsten barrels despite the fact that its cost considerably more than brassbarrels.
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