Editing Accurizing (section)

====Wear====
Barrel wear is also an important issue, particularly in high-powered firearms. High temperatures tend to erode the barrel at the throat, preventing the bullet from entering the rifling cleanly. One way to produce a long-lasting barrel is by the proper selection of materials. [[Stainless steel]]s, such as 416, have been shown to have a longer life than the traditional [[41xx steel|4140]] [[Chromium|chrome]]/[[molybdenum]] steels used for barrels.<ref name=lilja /> While the stainless barrels are not any more accurate than a 4140 barrel, they will maintain their accuracy longer in many applications, as they are more resistant to erosion caused by the heat of firing high-powered cartridges. One notable exception to this is the [[.50 BMG]] cartridge; competition shooters often fire high-precision [[lathe]]-turned bullets made from harder brass, bronze, or steel in this caliber, and the 4140 steel will stand up to this better than stainless.<ref name=lilja />