barrel length的意思|示意

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Barrel length has a huge influence on a firearm's performance. It is the length of the metal tube that runs from the chamber of the gun to the muzzle. The longer the barrel, the more time the bullet is exposed to propellant gases, leading to increased muzzle velocity and accuracy. Longer barrels also provide more time for expanding gases to cool, resulting in reduced muzzle flash.

In general, longer barrels are more desirable for precision shooting at long range. Short barrels, on the other hand, are lighter and more maneuverable, making them better suited to close quarter combat. Some types of firearms, such as bullpup designs, take advantage of a long barrel in a shorter overall length.

In addition to the length of the barrel itself, the length of the chamber also affects performance. Longer chambers allow for more efficient flow of propellant gases, resulting in higher muzzle velocity and accuracy.

Ultimately, when it comes to barrel length, the best choice is whatever works for a particular application. A long barrel is optimal for precision shooting at long range, whereas a shorter barrel is better for close quarter combat. Ultimately, it’s up to the shooter to decide which type of barrel best suits their needs.