Flame cutting (firearms)

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Flame cutting is a destructive phenomenon that occurs in some firearms (usually Revolvers) as a result of hot gasses under high pressure. The most common manifestation is on the underside of a revolver top strap, where the hot, high-velocity gases begin to cut through just above and in front of the cylinder. In most cases, this is self-limiting; eventually, the depth of the cut will place the undamaged material far enough away that the heat and pressure of the gas will have dissipated to harmless levels. In most cases, this limiting occurs before the structural integrity is compromised.