What is the typical weight of a .50 caliber machine gun barrel?

The typical weight of a .50 caliber machine gun barrel is approximately 26 pounds. This weight is representative of the robust construction required for a barrel capable of handling the firing stress and thermal conditions associated with .50 caliber ammunition. The .50 caliber machine gun, designed for heavy fire, needs a barrel that not only ensures accuracy but can also dissipate heat effectively during prolonged firing.

Other choices, while they may seem plausible or nearby, do not accurately reflect the standard specifications for a .50 caliber machine gun barrel. Weighing either more or less would suggest variations in barrel design or intended use, which are not typical for this specific caliber. Therefore, the weight of 26 pounds is firmly established within military specifications for optimal performance and durability in operating conditions.