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This is roughly equivalent to the obsolete NIJ Level II ballistic protection level. [10] NIJ HG2 9mm Luger.44 Magnum: This armor would protect against: 124 grain 9mm Luger Full Metal Jacketed Round Nose (FMJ RN) at a velocity of 1470 ft/s (448 m/s) 240 grain .44 Magnum Jacketed Hollow Point (JHP) at a velocity of 1430 ft/s (436 m/s).
NATO AEP-55 STANAG 4569 is a NATO Standardization Agreement covering the standards for the "Protection Levels for Occupants of Logistic and Light Armored Vehicles". [ 1 ] The standard covers strikes from kinetic energy , artillery and IED blasts .
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 added weight of the water is then used to establish the liquid volume and hence the case capacity. This liquid volume measurement method can be practically employed to about a 0.01 to 0.02 ml or 0.15 to 0.30 grains of water precision level for firearms cartridge cases. A case capacity establishment should be done by measuring several fired ...
Additionally, there are two other threat levels (SG1 & SG2) corresponding to shotgun munitions. To be given a particular rating, the glazing must stop the bullet for the specified number of strikes, with multiple strikes placed within 120mm of each other in the test sample which dimensions are 500±5mm x 500±5mm.
Values courtesy of the Hornady Ballistic Calculator [14] For the purposes of this comparison barrel a barrel length of 24 in (610 mm) is used. The .458 Lott is able to attain over 2,300-foot-per-second (700 m/s) with a 500-grain (32 g) jacketed bullet at safe pressure levels from a 23–24-inch (580–610 mm) barrel.
The ballistic limit or limit velocity is the velocity required for a particular projectile to reliably (at least 50% of the time) penetrate a particular piece of material. In other words, a given projectile will generally not pierce a given target when the projectile velocity is lower than the ballistic limit. [ 1 ]
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