The higher the velocity, the flatter the bullet will shoot, with less wind drift, more energy when it reaches the target, and an extended maximum range. And that is what long-range shooting is all about. The first column represents the barrel length changing from the two lengths shown. The velocity calculations from these formulas apply only to IMR series powders.
 This record was surpassed in 2009 in Afghanistan by a British sniper, though using a .338 Lapua Magnum (8.58×70 mm) rifle..
The rounds intended for machine guns are linked using metallic links. The specified maximum diameter of an unfired .50 BMG bullet is 0.510-inch (13.0 mm); while this appears to be over the .50 inch (12.7 mm) maximum allowed for non-sporting Title In small arms under the U.S. National Firearms Act, the barrel of a .50 BMG rifle is only .50 inch (12.7 mm) across the rifling lands and slightly larger in the grooves. During World War II the .50 BMG was primarily used in the M2 Browning machine gun for anti-aircraft purposes. We’re already looking to get one for some video testing. Left to right, rear: Mk211, Spotter, Silver tip (Armor Piercing Incendiary), Blue tip (Incendiary), Black tip (Armor Piercing), SLAP-T, SLAP, Tracer, and Ball. For example, if we compare the 750 grain Hornady A-Max bullet with a 2700 fps muzzle velocity from a 28″ barrel to the same bullet at 2950 fps from a 4 footer, we see some big changes. The third column represents the change as computed using formulas derived by Homer Powley and adapted for small arms internal ballistics by Bill Davis. This is the Ferret .50; a top-end attachment to an AR15 lower. A beautiful .50 BMG surprisingly popped up about two minutes into the video and it caught our eye. The 250 fps faster bullet will remain supersonic out to a full 2500 yards. My own experience has shown it to be a reliable indicator, too. John Browning had the idea for this round during World War I in response to a need for an anti-aircraft weapon, based on a scaled-up .30-06 Springfield design, used in a machine gun based on a scaled-up M1919/M1917 design that Browning had initially developed around 1900 (but which was not adopted by the U.S. military until 1917, hence the model designation). In the meantime, for more information, please visit CadexDefence.com.  Under STANAG 4383, it is a standard cartridge for NATO forces as well as many non-NATO countries. The presence of a muzzle brake has no effect on this recoil. The M15-series "push-through" links were used in the M85 machine gun. The briefing did not identify any instance of a .50 BMG rifle being used in the commission of a murder.
The last piece of info is price. The concept of a .50 caliber machine gun was not an invention of this era; this caliber (.50) had been used in Maxim machine guns and in a number of manual rapid fire guns such as the original Gatling. That custom Stormtrooper White Cerakote finish ties everything together, especially with the snow in the background.