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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.
Spiral grooves cut into the inside of the barrel- known as rifling.
Bullets rotate due to the grooves that run down the inside of the barrel walls in a "helical" shape - this is known as "rifling". The grooves make contact with the bullet as it it fired down the barrel and cause it to spin. This improves its aerodynamic stability and accuracy.
The soldier's RIFLE was far more accurate than any other gun he had shot, due to the grooves inside the barrel that gave fired bullets a spin.
There are spiral grooves engraved on the inside of a rilfe or pistol barrel. When a bullet is fired, it is forced into those grooves, which impart a spin to the bullet. The grooves are called rifling.
The soldier's RIFLE was far more accurate than any other gun he had shot, due to the grooves inside the barrel that gave fired bullets a spin.
Spin causes electrons to exhibit magnetism.
Because of the rifling inside the barrel. If you want to know the purpose of that, the answer is, it causes the bullet to travel farther and more accurately, just like when you throw a football.
To make bullets spin so they fly straight.
To make the bullets more accurate by causing them to spin.
the starter
backfiring.