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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 cartridge delivers accurate (sub-MOA) performance from a sniper rifle. The Lost River Ballistic Technologies/Jamison International 419-grain (26.95 g) very-low-drag bullet is the standard, long-range sniping load. Lost River Ballistic Technologies also designed a 305 grain (19.76 g) bullet for the Battlefield Domination Round (BDR).
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Computational Fluid Dynamics (CFD) modeling and simulation for phase change materials (PCMs) is a technique used to analyze the performance and behavior of PCMs. The CFD models have been successful in studying and analyzing the air quality, natural ventilation and stratified ventilation, air flow initiated by buoyancy forces and temperature space for the systems integrated with PCMs.
Conversion from kilo grain feet per second to newton-seconds is trivial, since both the grain and foot is based on SI units. One troy grain is defined as 0.064 798 91 grams exactly [ 1 ] and one international foot is defined as 0.3048 meters , giving the exact conversion factor of 0.019 750 707 768 .
Load Index (LI) kg lbs Load Index (LI) kg lbs Load Index (LI) kg lbs 25: 92.5 204 125: 1650 3638 225: 29000 63900 26: 95 209 126: 1700 3748 226: 30000 66100 27: 97.5 215 127: 1750 3858 227: 30750 67800 28: 100 220 128: 1800 3968 228: 31500 69400 29: 103 227 129: 1850 4079 229: 32500 71700 30: 106 234 130: 1900 4189 230: 33500 73900 31: 109 240 ...
The Taylor KO factor multiplies bullet mass (measured in grains) by muzzle velocity (measured in feet per second) by bullet diameter (measured in inches) and then divides the product by 7,000, converting the value from grains to pounds and giving a numerical value from 0 to ~150 for normal hunting cartridges.
0.1 × ( 12 ÷ 8 ) = 0.15 grain per dscf when corrected to a gas having a specified reference CO 2 content of 12 volume %. Notes: Although ppmv and grains per dscf have been used in the above examples, concentrations such as ppbv (i.e., parts per billion by volume), volume percent, grams per dscm and many others may also be used.