short barrel guns shoot , Not good?

Bullet spending less time in the barrel tends to have positive impact on human error/wobble related accuracy issues. That’s why 10M airguns have a short actual rifled barrel while the rest of the barrel length is just a shell to give long distance in between sights.

:hoot:

Barrel length is not a factor in accuracy or distance in air guns!

Barrel length affects only air usage per shot. If you want to shoot at 100 meters, you will be as accurate and powerful as someone with an 18″ barrel. The pellet does not care about length of the barrel, only about velocity it exits the barrel with, and whether the barrel imparted the proper spin rate to ensure accuracy.

Simply put, a short barrel needs more air to get the pellet up to the same speed as a long barrel. A rule of thumb is about a 50 fops gain in velocity per additional inch of barrel. Since best accuracy is achieved at subsonic velocities, it is easy to achieve the same velocity in short barrels as with long barrels…it just requires more initial air volume to reach the same feet per second with a short barrel.

This has been known for many years. It’s simple physics at work. Whether the pellet exits an 18″ barrel, or a 12″ barrel, if it exits at the same velocity and spin rate, it will have identical accuracy and power at all distances!

Barrel length only mattered in muzzle loaders that needed a longer barrel to permit slow burning black powder to completely ignite before the ball or mini-ball exited the barrel.

A good marksman will easily compete with a bullpup against other bench rest shooters using longer barrels. It’s not the barrel that wins the match, it’s the marksman shooting.

So, why do bench rest shooters use long guns? Easy…it’s all about lateral stability when aiming. If the barrel wiggles you have a much more difficult time releasing the trigger at the exact moment the crosshairs meet the bullseye. A longer barrel moves slower than a shorter barrel, making the hold on target longer, giving you a more forgiving opportunity to fire at the most opportune moment.

This has been shown many times in match competition when bull pups outshot the long guns at the meet. The Edgun has a rather good history of winning matches against long guns.

Hope this helps solve the question.

Hoot:

That’s because impetus is directly proportional to the barrel length. Too short and the pellet just drops down before 100 yard mark.