how fast it is going
Rifling in the barrel is actually grooves cut into the barrel by the manufacturer to cause the bullet to spin as it leaves the barrel. Before rifling the bullets would tend to tumble when they left the barrel causing them to have shorter range and be less accurate.
The rifling in the barrel. These are grooves cut on the interior of the barrel that twist around and cause the bullet to spin as it passes down the barrel. The spin stabilizes the bullet and promotes accuracy.
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!
A bullet rotates in flight due to the rifling inside the barrel of a gun. The rifling creates grooves that grip the bullet and cause it to spin as it travels down the barrel. This spin stabilizes the bullet's trajectory and improves accuracy.
The container would likely explode - if the bullet pierced the skin to the point of coming into contact with the lox. The heat from the bullet would cause the lox to explode in a ball of flame.
As soon as it leaves the muzzle of the rifle. To hit a target at any distance, the line of sight of the barrel will be tilted so that it is ABOVE horizontal- and gravity will cause the bullet to curve back to earth- or your target.
Where a bullet is pushed through the barrel of a rifled firearm, spiralgrooves cut into the inside of the barrel (rifling) cause the bullet to spin. This provides for better accuracy- and at the same time, makes marks (striations) on the bullet. A shotgun does not have those grooves, and does not produce striations on the projectile.
Not like you've seen in some movies. There are things that CAN cause a bullet to curve, but its usually an artifact in manufacturing, like an imbalance, or an unequal aerodynamic drag. All other things being equal, the direction the muzzle is pointing when the bullet leaves the barrel determines the direction the bullet will travel; a ballistics arch from that point to where it impacts.
Yes, it is called "spiking", although it is likely to cause the barrel to explode if the gun (or artillery piece) is fired. YOU CANNOT PREVENT A GUN GOING OFF, BY INSERTING YOUR FINGER INTO THE BARREL
No. Rifling is intended to stabilize the projectile.
For the most part, Paintballs are without rifling and thus cannot produce a "stablizing" spin as it leaves the barrel, it is stuck with the motion produced by the air flowing behind the ball as it leaves the barrel. Also Paintballs have a liquid center as opposed to the solid core of a bullet, the liquid inside the ball has a tendency to settle in one side of the ball for than another. This throws the center-weight of the ball off enough to cause a spin of its own. There are also outside forces that can cause a spin on the ball such as oil or dirt in the barrel, or even the shape of the barrel itself.
When a bullet is fired from a rifle, a chemical reaction in the gunpowder ignites, rapidly expanding gases build up pressure, and the bullet is propelled out of the barrel at high speed. The rifling in the barrel causes the bullet to spin, improving accuracy and stability. Gravity will eventually cause the bullet to drop due to gravity and air resistance.