Paintball Gun Barrels
There is a great deal of debate about what makes the best paintball gun barrel. Variables such as length, venting and the materials it is made from all figure into selecting the best barrel for the circumstances of each game.
It is a myth that a longer barrel will give you a greater range. Testing with several barrel lengths will demonstrate that you get about the same range whether you have a 10" or 14" barrel. Some longer paint gun barrels will actually achieve less range as friction will already be slowing the paintball down before it exits from the muzzle.
Of the metals used to manufacture paintball gun barrels, brass is by far the most effective. With the least friction of any paintball gun barrels the projectile speed offsets such encumbrance as the greater weight and the need to clean and polish the barrel more often. Stainless steel paintball gun barrels are also a low friction option. They are about as heavy as brass but do not require extra maintenance, however, they are among the most expensive barrels on the market. Aluminum provides a good "average" barrel. While there is a bit more friction in an aluminum paintball gun barrel, the lower cost and light-weight maneuverability is preferred by many.
Finally, if you are in a competition game where stealth is a necessity, paintball gun barrels are also made with "porting" holes. These barrels are made with a series of holes drilled along the side and by virtue of venting gas off during firing will reduce the sound of the air pressure as it exits the muzzle. While this makes for a quieter hunt, it does reduce the range and speed of the paintball.
Since paintball gun barrels are made to be interchangeable, having several types around to practice with will give you a better idea, during the heat of the game, which barrel will serve you best.
