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A milliradian (SI-symbol mrad, sometimes also abbreviated mil) is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian). Milliradians are used in adjustment of firearm sights by adjusting the angle of the sight compared to the barrel (up, down, left, or right).
MK 22 MOD 0 ASR (Advanced Sniper Rifle) is the designation for the Barrett MRAD variant ordered by USSOCOM. In 2019, USSOCCOM awarded Barrett Manufacturing a US$50 million contract for the ASR (Advanced Sniper Rifle) contract, ordering the Barrett MRAD with the ability to convert chambering between 7.62×51mm NATO, .300 Norma Magnum, and .338 ...
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Example of a ballistic table for a given 7.62×51mm NATO load. Bullet drop and wind drift are shown both in mrad and MOA.. A ballistic table or ballistic chart, also known as the data of previous engagements (DOPE) chart, is a reference data chart used in long-range shooting to predict the trajectory of a projectile and compensate for physical effects of gravity and wind drift, in order to ...
The process of mechanically readjusting the gunsight's point of aim to match the MPI is called sighting in or "zeroing" the gun. The size of the grouping is described as the diameter of the smallest circle that can be drawn to contain all the shots, [ 5 ] typically only measured from the center points of each impact (known as "center-to-center ...
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Stadiametric rangefinding often uses the milliradian ("mil" or "mrad") as the unit of angular measurement. Since a radian is defined as the angle formed when the length of a circular arc equals the radius of the circle, a milliradian is the angle formed when the length of a circular arc equals 1/1000 of the radius of the circle.
The EC-130 sold for $2,200 (equivalent to $21,900 in 2023), or about three times the price of comparable electromechanical calculators of the time. It was the first calculator to use reverse Polish notation (RPN), which eliminated the need for parentheses to specify the order of operations in complex calculations. The successor model EC-132 ...