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However, QuickLOAD has limitations, as it is merely a computer simulation. It does not account for different brands of primers for example, and its ability to predict the effect of seating bullets into the rifling is crude. A QuickLOAD user most certainly should not just "plug in" a cartridge, bullet and powder and use that load, assuming it is ...
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 .45-60 Winchester / 11.6x48mmR is a centerfire rifle cartridge intended for 19th-century big-game hunting. [4] Nomenclature of the era indicated the .45-60 cartridge contained a 0.45-inch (11.43 mm) diameter bullet with 60 grains (3.89 g) of black powder .
It is excellent for any North American big game in woods or brush, if the 250 grain bullet is used, but not especially suited to long range (400 yards and beyond) as a result of the need to use flat-nose bullets due to the Model 71's tubular magazine. Until Hornady's FTX flex tip pointed bullets, 300 yards with a good peep sight is a fairly ...
Miller twist rule is a mathematical formula derived by American physical chemist and historian of science Donald G. Miller (1927-2012) to determine the rate of twist to apply to a given bullet to provide optimum stability using a rifled barrel. [1]
Nomenclature of the era indicated the .40-60 cartridge contained a 0.40-inch (10 mm) diameter bullet with 60 grains (3.9 g) of gunpowder. The .40-60 WCF . Winchester Repeating Arms Company necked down the .45-60 Winchester cartridge to hold a bullet with improved ballistics for the Winchester Model 1876 rifle. [ 2 ]
As the power factor calculation is proportional to bullet momentum and as the very large proportion of recoil is proportional to bullet momentum, it is immediately clear that the 9×23mm Winchester had essentially the same power factor and recoil as .45 ACP. The true benefit of the 9×23mm Winchester came from two things.
The .300 Winchester Magnum has a case capacity of 93.8 grains. While providing ballistic performance nearly identical to that of the .300 Winchester Magnum, 300 WSM does this with about 14 grains less powder. The .300 WSM also head-spaces off of the case shoulder, versus the older .300 Winchester Magnum's belted head space design.