This video debunks the myth that a worn-out firearm barrel will explode. The hosts explain that bore wear, which increases the barrel's diameter, actually leads to lower pressures. They discuss various ways a barrel can wear, including throat erosion (leade wear) in handguns, general rifling wear from extensive use, improper cleaning, and corrosive ammunition. The rare case of the curved barrel on the German WWII StG 44 'Krummlauf' is mentioned as a potential, though highly unlikely, failure point, but this is distinguished from typical bore wear. The video clarifies that while barrel wear can affect accuracy, it will not cause an explosion. They also provide a tip to avoid overcleaning .22 caliber firearms due to their shallow rifling.
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