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Muzzle velocity is the speed of a projectile at the moment it leaves the end of a firearm. If you want to made every shut, then you have to know the math of the muzzle velocity, and everything might will affect your bullet.
Muzzle velocity is the speed of a projectile at the moment it leaves the end of a firearm. If you want to made every shut, then you have to know the math of the muzzle velocity, and everything might will affect your bullet.
Projectile velocity:
- The velocity of a projectile is highest at the muzzle and drops steadily because the air resistance.
Things will affect the bullet in the air.
Things will affect the bullet in the air.
Barometric pressure
Barometric pressure
Humidity
Humidity
Air temperature
Air temperature
Wind speed
Wind speed
Gravity
Gravity
Your Emotion will affect your bullet too
Your Emotion will affect your bullet too
How Air Temperature Affect the Bullet?
How Air Temperature Affect the Bullet?
Ambient air temperature has an inverse effect on air’s density. As the air’s temperature increases, its density decreases.
Ex:
"If you’re shooting 175-grain Federal Gold Medal Match bullets out of a .308 Win. rifle at about 2,600 fps on a 55-degree winter day, you can expect about 223 inches of drop from your 100-yard zero at 800 yards. If you didn’t get back to the range until it was 95 degrees in the summer and you expected to make an adjustment on your scope to account for the 223 inches your bullet previously dropped at 800 yards, then you’d miss where you were aiming by about 10 inches. " -
How does Barometric Pressure affect the Bullet
How does Barometric Pressure affect the Bullet
- Bullet won't travel as well in the thick air.
- More air= more denser air= slower bullet
- The reason this heaped, Because air have some mass, so it will pulled down by the gravity and same time it will slow the bullet and pull down the bullet too. It kind like the water pressure but just affect more less.
- But it won't affect a lot, when we close to your target.
Speed of a projectile Each Gun
Speed of a projectile Each Gun
- 120 m/s to 370 m/s in black powder muskets.
- More than 1,200 m/s in modern rifles with high-performance cartridges
The way to Calculate a Bullet's Trajectory
The way to Calculate a Bullet's Trajectory
x = v0x√2h ÷ g, this formula is the easy way to calculate it, but is without the drags.
x = vx0t − CρAv2 t2 ÷ 2m, this one is use more in the real life, because it is incorporates drag.
C is the drag coefficient of the bullet, p is the air density, A is the area of the bullet, t is the time of flight and m is the mass of the bullet.
Video
Video
Pages by Henry Yin
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