Search results
Results from the WOW.Com Content Network
According to Newtonian mechanics, if the gun and shooter are at rest initially, the force on the bullet will be equal to that on the gun-shooter. This is due to Newton's third law of motion (For every action, there is an equal and opposite reaction). Consider a system where the gun and shooter have a combined mass m g and the bullet has a mass m b.
"Grain foot per second" (gr·ft/s) can be obtained by measuring the mass in grains (gr) (7,000 to the pound) and velocity in feet per second (ft/s), but since their product yields a very large number it is common to multiply by a factor of 1 ⁄ 1000, obtaining the power factor in kilo grain foot per second instead.
In numerical analysis, the shooting method is a method for solving a boundary value problem by reducing it to an initial value problem. It involves finding solutions to the initial value problem for different initial conditions until one finds the solution that also satisfies the boundary conditions of the boundary value problem.
[1] [2] On the other hand, the grouping displacement (the distance between the calculated group center and the intended point of aim) is a measure of accuracy. Tightness of shot groupings are calculated by measuring the maximum distance between any two bullet holes on the target (center-to-center) in length measurements such as millimeters or ...
Solving (1) is an elementary differential equation, thus the steps leading to a unique solution for v x and, subsequently, x will not be enumerated. Given the initial conditions v x = v x 0 {\displaystyle v_{x}=v_{x0}} (where v x0 is understood to be the x component of the initial velocity) and x = 0 {\displaystyle x=0} for t = 0 {\displaystyle ...
It provided a flat-shooting cartridge capable of taking small deer and small game species. In February 2010, Black Hills Ammunition began selling 6×45mm ammunition. They use standard .243 bullets weighing 85 and 100 gr. Sporting Products LLC also began to distribute AR-15 uppers and complete rifles chambered for the 6×45mm.
AOL latest headlines, entertainment, sports, articles for business, health and world news.
The .450/400 Nitro Express is a Nitro Express rifle cartridge that is produced in three case lengths: 2 3 ⁄ 8-inches, 3 inches and 3 1 ⁄ 4-inches, [2] and is intended for use in single shot and double rifles. The 3-inch and 3 1 ⁄ 4-inch versions are considered classic Nitro Express cartridges.