Muzzle velocity calculator10/28/2023 If a procedure is not clear enough, I can try to elaborate. This returns a Muzzle Velocity of 2830 fps This is something that is known as muzzle velocity, and it is a very important factor in determining which bullet cartridges will give their best performance at any given distance based on their weight and speed. bullet with average chronograph values of 2818 fpsīallistic Coefficient of the Hornady Bullet is 0.392 A shooting chronograph is a tool that measures the speed at which your bullets leave the barrel of your gun. Let's do my 280 Remington shooting a Hornady 139 gr. Combining complete onsite environmental measurements with the precise trajectory solutions of the integrated Hornady 4DOF ballistics solver, this rugged all-in. This should return an answer of 1503.975 fps Use this online calculator and find the muzzle energy in foot pounds and joules. The (*) may also be entered as (X) on a hand held calculator and the "=" may be entered as "EXE" or "Calc" It is calculated from mass, velocity and weight of the bullet. The 150-grain bullet has a muzzle velocity of 2,820, while the 180-grain has a muzzle velocity of 2,620 feet per second. This is repeated in Winchester’s Power Max cartridges. On your calculator, enter the following, being sure to enter the parentheses "( )" characters in the equation. The Federal 115-grain 9mm ammo has a muzzle velocity of 1,180 fps, while the larger bullet is propelled at 1,000 fps. Let MV = The Muzzle Velocity calculated from the Chronograph Velocity. Let CV = The average of the shot chronograph values. Muzzle energy is a prime comparative figure and could be the reason you pick one load over another. Let BC = The Ballistic Coefficient of the bullet. Muzzle velocity and energy are often stamped right on ammo packaging. Let CD = The Distance, in feet, from the muzzle to the center of the chronograph screens. On a scientific calculator, the "e" function is the inversion of "ln" (log number) function and that is activated by pushing "shift" or "inv" + the "ln" key. Then click the "View" menu and select "Scientific". Click Start ~ All Programs ~ Accessories ~ Calculator to bring it up. You will need a scientific calculator to do the calculation. External Ballistics Calculator - Borst Engineering & Construction LLC. There is a formula that will closely estimate this loss at normal chronograph distances: For short distances we can ignore the Atmospheric Conditions. The Pressure value used for each caliber happens to be the maximum SAAMI safe chamber pressure. 50 caliber BMG using CFR's derived method. How do I calculate true muzzle velocity from my chronograph?Velocity loss of a bullet is a function of Initial Velocity, Distance, Ballistic Coefficient and Atmospheric Conditions. Shown in the table below are a few sample calculations of both Projectile Velocity and Barrel Pressure for the 9mm.
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