what is the benefit of a fluted barrel
Fluting (firearms) The main purpose of fluting is to reduce weight, and to a lesser extent increase rigidity for a given total weight or increase surface area to make the barrels less susceptible for overheating for a given total weight. However, for a given diameter, while a fluted barrel may cool more quickly, a non-fluted barrel will be stiffer and be able to absorb a larger amount of total heat at the price of additional total weight.[1][2][3][4]
Winchester rifle The first Winchester rifle – the Winchester Model 1866 – was originally chambered for the rimfire .44 Henry. Nicknamed the "Yellow Boy" because of its receiver of a bronze/brass alloy called gunmetal, it was famous for its rugged construction and lever-action "repeating rifle" mechanism that allowed the user to fire a number of shots before having to reload. Nelson King's improved patent remedied flaws in the Henry rifle by incorporating a loading gate on the side of the frame and integrating a round, sealed magazine which was partially covered by a forestock.