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Round accuracy is improved by spinning the projectile. This is achieved by spiral grooves running down the length of the barrel.

This spin strengthens the momentum of the bullet along its trajectory and in part creating a stable vortex around the projectile.

Along its flight air friction slows and weakens the stable momentum of the projectile. Random environmental factors such as wind, particles, varying air pressure, then act on the bullet sending it off course.

Yet the weapon itself can be a cause of tumble also. Uneven cartridge and wear of the barrel allow the explosive forces and gasses to cause tumbling. That's why you can strip a weapon and change the barrel.

So in most respects the bullet begins to tumble as soon as it exits the barrel. A good indicator of when the tumble effects accuracy is the 'effective range' of a caliber. This a combination of unacceptable accuracy and ineffectual damage to a target. IE beyond the maximum range you can get hit and have nothing more than a minor bruise.

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15y ago

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Related Questions

Does the spiraling barrel of an m-16 cause the bullet to tumble?

This spiraling is called rifling. This imparts a stabilizing spin to a projectile. The M16 has a very tight spiral, but the bullet shouldn't tumble until it hits a target. If you picture a bullet, when the narrow tip first hits a target, it will cause the rest of the bullet to tumble, end over end, and often fragment as well.


Will the bullet tumble if you hold the gun sideways?

No. It will still fly straight.


What does the rifled musket do?

It improves that accuracy and distance of the bullet by causing the bullet to spin not tumble like a smooth bore barrel musket.


Does a AK-47 bullet flip?

If by flip you mean tumble in the air then it depends on the type of AK that is being fired. If the AK is cheaply made and has a low quality barrel then the bullet may tumble in the air. Quality AK47s do not have this problem.


What motion would a bullet have without rifling?

It' still go forward, but then it's more likely to tumble.


What does yaw mean in a bullet's path?

Yaw refers to the rotation or deviation of a bullet's long axis from its original flight path. This can occur when a bullet destabilizes in flight, causing it to lose accuracy and potentially tumble upon impact. Yaw affects a bullet's stability and terminal ballistics.


What does tumble mean from a gun shot wound?

It means the bullet began to rotate end-over-end through the wound channel.


Why does your bullet tumble when it comes out of the barrel?

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.


What does a m16 bullet do after impact?

There'll be some deformation, it may fragment if it hits bone or a hard object, and it'll tumble inside of a body cavity.


What causes a bullet to spin when fired?

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.


How do you use tumble in a sentence?

Let's take a tumble! I was ffightened when the pigeon began to tumble.


Will a shorter barrel cause mid flight bullet tumble at 4 to 6 hundred yards in the 5.56 NATO?

Yes,they can,and do tumble when fired from shorter carbine barrels. And at closer ranges than say,a coupld hundred yards.I know because I fired such a round about forty five minutes ago.