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When a rifle with a longer barrel is fired the force of expanding gases acts on the bullet for a longer distance what effect does this have on the velocity?
To a point, the velocity of the bullet will increase. However, at some point, the gasses driving the bullet have maxed out, and beyond that point, the bullet will begin to slow from friction with the barrel. For a .22 LR cartridge, that length is about 12 inches. Larger cartridges have a greater "Max velocity" length, but there is a point of no more gain, and the start of loss of velocity.
How does the length of a shotguns barrel effect muzzle velocity?
A longer shotgun barrel typically results in higher muzzle velocity due to increased internal pressure build-up as the shot travels along a longer pathway, allowing for more complete powder burn and acceleration of the shot. This can result in a slight increase in overall velocity and possibly better shot pattern at longer distances.
Can adding a longer barrel to a gun improve it any?
Usually, yes. A longer gun barrel allows the bullet to accelerate longer and thus increases its velocity. But it is a complicated problem. A short barrel and a large powder load has about the same velocity as a smaller load and a longer barrel. A longer barrel suffers more wear. Really big naval guns were good for a limited number of shots and each shot was numbered, being bigger for every shot.
What the work energy theorem of a rifle with a longer barrel that fire bullets with a larger velocity than a rifle with a shorter barrel?
The work-energy theorem states that the work done on an object is equal to the change in its kinetic energy. In the case of rifles, the longer barrel allows for a longer acceleration distance for the bullet, resulting in a higher muzzle velocity. This means that the rifle with the longer barrel does more work on the bullet, giving it more kinetic energy and a higher velocity compared to the rifle with the shorter barrel.
Why would a cannon with a longer barrel give the cannonball more momentum?
A longer barrel allows the cannonball to be in contact with the expanding gases for a longer period of time, resulting in a greater acceleration and higher muzzle velocity. This increased velocity translates to greater momentum for the cannonball.
If a cannonball is shot from a longer barrel cannon rather than a shorter barrel cannon it willl have a?
Longer (effective) range. Longer barrels on a firearm allow for more complete burning of the propellant, which results in a higher muzzle velocity, which in turn results in a longer effective range, when compared to an identical weapon with a shorter barrel.
What is the lowest velocity?
Lowest velocity round such as a 30.06 barrel has a longer barrel life.
A cannonball shot from a cannon with a long barrel will have a greater muzzle velocity because the cannonball receives a greater what?
Gunpowder burns, heat and pressure rise, ball accelerates Guns are designed so that the potential of the gunpowder is translated into momentum of the cannonball, if you hold the barrel diameter and cannonball size the same, the only way to increase the momentum (and velocity) is to apply the gunpowder force (pressure) for longer, this means: 1) A longer barrel 2) More gunpowder
What is the velocity of 303 rifle bullet?
2441 feet per second when fired from the British SMLE rifle. Velocity will vary when fired from rifles with a longer or shorter barrel.
How does the term 45 Caliber apply to the 16 inch projectiles of the main battery naval rifles of the Missouri class Battleships The projectiles are close to 5 feet long?
Caliber (for artillery) is the ratio of the barrel length to the bore diameter. So a 50 caliber 16" gun (Iowa-class) is longer than a 45 caliber gun (North Carolina-class), which gives a higher muzzle velocity, and therefore greater range and penetration.
Does the velocity of a 22 caliber bullet change with the length of the barrel?
Yes. The velocity of all common cartridges changes with the length of the barrel. In the case of a .22 LR, they develop the maximum velocity between 12 and 16 inches of barrel. Shorter than that, the gasses from the gunpowder have not accelerated the bullet as much as they can. Longer than that, gasses reached their max acceleration, and the bullet is now slowing from friction in the barrel.
Why does a rifle have a long barrel?
The longer the barrel allows several things:Higher velocity bullets ( From better containing of burning propellant )The longer barrel help the bullet become and stay stable thus creating a more accurate firearmThe higher mass of the long weapon helps control and direct the recoilThe longer weapon allows more stable and accurate aimingThe longer barrel allows the use of flash suppression and gas redirection with out risking the operators health
