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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.
Given its higher pressure and larger case which holds more powder than the .270 Winchester, the .270 Weatherby has about 200 ft/s faster performance with any particular bullet weight. [5] It also outperforms newer cartidge designs such as the .270 WSM and the 6.8 Western. This performance comes at the cost of more recoil and barrel heat. In ...
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point.. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name.
m = bullet mass in grains (defined as 64.79891 milligrams) s = gyroscopic stability factor (dimensionless) d = bullet diameter in inches; l = bullet length in calibers (that is, length in relation to the diameter) t = twist rate in calibers per turn; Also, since one "caliber" in this context is one bullet diameter, we have:
The 270 Winchester Short Magnum or 270 WSM is a short magnum cartridge created by necking down the .300 Winchester Short Magnum and fitting it with a .277 caliber bullet. The correct name for the cartridge, as listed by the Sporting Arms and Ammunition Manufacturers' Institute ( SAAMI ), is 270 WSM, without a decimal point. [ 3 ]
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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 ...
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.