A bullet does not accelerate after it leaves the barrel of a gun. It will decelerate. You could say it accelerates, but the acceleration would be negative. The bullet is accelerated by expanding gas as it moves down the barrel, and after it leaves the muzzle, there is no more acceleration imparted from expanding gas. We also find that air friction (drag) is acting to slow it down. Think this one through and it becomes obvious.
The barrel of the gun has lands and grooves (grooves and ridges) cut in a spiral. The bullet molds to these and starts to spin as it moves down the barrel. The bullet just continues to spin after it leaves the barrel.Correct. The ridges are known as 'lands'. It is possible to calculate how fast a bullet will spin if you know the twist rate of the barrel and the velocity of the bullet. My AR15 has a twist rate of 1-in-8 ie for every eight inches the bullet travels down the barrel, the bullet is rotated once. It fires a .223 round at approx 2,800 feet per second so... The formula is (bullet velocity x 720)/twist rate so... (2,800x720)/8 is an incredible 252,000RPM!
Bullets fired from a rifled firearm should NOT tumble in flight. If they do so, it is a sign of problems. This may be caused by different matters that all relate to the rifling in the firearm, and the bullet. First is rifling is badly worn, if the bore is oversized for the bullet, or if rifling is badly fouled with lead/ jacketing metal/powder deposits, the bullet will not be gripped by the rifling and spun, and may not be stable in flight (tumbling) Try cleaning the bore properly, and check for excessive wear at the muzzle. The second condition is the wrong weight/length of bullet for the rate of twist of the rifling. A fast rate of twist, combined with a very fast bullet, MAY result in the bullet "stripping", and not being spun by the rifling. Or a very heavy, slow bullet may not be spun fast enough to stabilize the bullet. Most .22 rimfire rifles are rifled to shoot 40 grain bullets accurately. If loaded with a 60 grain bullet, such as the Aguilla 60 gr SSS, the bullet will not be stabilized, and may tumble in flight.
The speed of a hollow point bullet can vary depending on the caliber and type of firearm it is fired from. On average, handgun bullets can travel at speeds ranging from 800 feet per second (fps) to 1500 fps, while rifle bullets can reach speeds of up to 4000 fps or more.
Dodging a bullet is very difficult due to the speed of a bullet, which can range from around 1,400 to 1,800 miles per hour. To have a chance of dodging a bullet, you would need to react and move in a fraction of a second, which is nearly impossible for most humans.
If you have incredible aim and like lightening fast reflexes, then i guess its possible, but i would say its pretty much impossible, or you would have to get like 1 and 1,000,000,000,000,000,000,000,000 lucky to stop a bullet with another bullet
how fast it is going
Too broad a question. Muzzle velocity is determined by the specific cartridge, barrel length, barrel tolerances, etc.
The barrel of the gun has lands and grooves (grooves and ridges) cut in a spiral. The bullet molds to these and starts to spin as it moves down the barrel. The bullet just continues to spin after it leaves the barrel.Correct. The ridges are known as 'lands'. It is possible to calculate how fast a bullet will spin if you know the twist rate of the barrel and the velocity of the bullet. My AR15 has a twist rate of 1-in-8 ie for every eight inches the bullet travels down the barrel, the bullet is rotated once. It fires a .223 round at approx 2,800 feet per second so... The formula is (bullet velocity x 720)/twist rate so... (2,800x720)/8 is an incredible 252,000RPM!
The bullet is the lead, or copper coated lead, slug that leaves the barrel and (sometimes) hits the target. The cartridge is the casing (usually brass) which holds the powder, and the bullet, assembled together into one complete round of ammunition. Cartridge goes into chamber of firearm, is detonated by the firing pin, and the powder burns very fast, sending the bullet out of the barrel. PLEASE be careful with firearms and use them responsibly.
An MP40's muzzle velocity (speed of a bullet upon exiting the barrel) is about 1,250 feet/second.
That would depend on the mass of the bullet, the bullet's velocity when it left the barrel of the gun, and from how high up the bullet was fired from.
Typically between 2600 and 2800 feet per second. Exact speed depends on WHICH bullet, the powder charge, and the length of barrel it is fired from.
gunpowder burns creating great heat , air pressure increases proportionally , and, like an air rifle, immense pressure creates force on back of slug accelerating it along the tightly fitting gun barrel. Imagine say 20g slug accelerated (assume uniformly) to 2000m/s in 10cm of gun barrel and calculate average force required to do it , this being testimony to gunpowder's tremendous potential energy.
Depends on the bullet weight and the length of barrel it is fired from. There is a range of about 2700 fps to 3250 fps for that cartridge. Averages out to around 3050 fps.
Really fast
A.) They accelerate by there bones and your heart. If your heart is fast you will be fast, if your heart is slow you will go slow.
rilly fast