Source: Reddit
A mainstay weapon of Ukrainian rapid response anti-drone units is the Browning M2 .50 caliber (12.7mm) heavy machine-gun. Here, it looks to be mounted in the bed of a 5th. generation Toyota Hilux double-cab pick-up truck. Nicknamed the “Ma Deuce”, the development of the M2 commenced in 1918 and first entered U.S. military service in 1933. Besides being used by infantry as a heavy support weapon, the M2 and its derivatives were used in aircraft (both as main armament and defensive armament), mounted on naval ships, mounted on tanks (typically for anti-aircraft use), and more. The M2 is still in production and has seen action in dozens of conflicts around the world in the hands of over two scores of military forces. The version of the weapon shown here is a M2E2 which incorporates a quick change barrel.
By itself, the M2 has a weight of 84 pounds of which the barrel accounts for 24 of those pounds. It uses a short recoil-operated action and has a cyclic rate of fire of between 450 to 550 rounds per minute. However, the M2 is a select-fire weapon, being able to fire one round at a time as well as full automatic. The gunner, with training, can conduct slow fire which consists of 5 to 7 round bursts every 10 to 15 seconds (a rate of fire of under 40 rounds per minute) or rapid fire which is 5 to 7 rounds every 5 to 10 seconds (a rate of fire over 40 rounds per minute). The gunner must bear in mind that firing more than 150 rounds in two minutes will heat the barrel to the point that a round can cook off in the breech. The gunner has 10 seconds to extract a unspent round from the breech before a cook off can occur. If the round cannot be extracted, then the gunner has to wait at least 5 minutes before attempting extraction and give time for the barrel to cool. The M2 is belt fed and ammunition is held together by either M2 or M9 links.
Typical ammunition is the M2 ball, M1 tracer, M2 AP (Armor-Piercing), and M8 API (Armor-Piercing Incendiary) cartridges. The M2 ball round can penetrate up to 1 inch of concrete at 1,500 meters and 6 inches of sand at the same distance. The M2 AP round can penetrate 8mm of homogeneous armor at 1,500 meters (just under 1 mile), 5mm of face-hardened armor at 1,500 meters, and 406mm of sand at the same distance. The maximum range is 7,400 meters or 4.6 miles. The M2E2 seen here is using the standard leaf-type rear sight and the front blade-type sight. The rear sight is graduated from 100 to 2,600 yards and has a windage knob for deflection adjustments.
The gunner is wearing a Partizan Camouflage uniform which is also known as SS Leto/Autumn (“leto” means summer in Russian). The camouflage is made by the Russian company Kula and it is derived from the Russian military camouflage pattern of the same name which first appeared in 2004. For anyone familiar with German World War II camouflage, Partizan is based on the Waffen-SS camouflage pattern known as SS-Eichenlaubmuster (“oakleaf pattern”). Like Waffen-SS camouflage, Partizan is reversible into the “autumn” side which replaces the green base color with a brown hue. Kula makes another similar pattern, SS Spring (also called Medusa or Partizan-M), which uses the same pattern but uses a dark brown background with various shades of green splotches. The latter also more closely matches the coloration of the Waffen-SS “oakleaf” camouflage.
