Barrel 101
Step bore barrels:
The propellant accelerates the paintball from zero to the set point (we will call it 300 for s&g). The majority of the acceleration takes place in the tight bore section at the back of the barrel. Partways down the barrel the bore steps up to a larger bore allowing the propellant to escape around the ball and out the front. A very small amount of acceleration takes place after the step as the paintball is still traveling along with the gas as it escapes. It takes more energy to accelerate a paintball from zero to three hundred in five inches than it would take the same paintball to achieve the same velocity in ten inches. You have less time to reach the desired velocity therefore you have to apply more energy. More energy equals more gas making the barrel less gas efficient. I have never owned or shot a Lapco but looking at the pictures you will notice that all of the porting is at the very end of the barrel. The barrel has a longer acceleration distance making the barrel more gas efficient(assuming it is not stepped). This is assuming that you have a good paint to barrel match. Obviously, taking into account all I have just stated, if your bore is larger than your paintball then you will experience poor gas efficiency. Here in lies one of the benefits of the Freak barrel. Yes it is stepped bore (Making it the least efficient barrel design) but you are guarenteed good paint to barrel match and the best possible gas efficiency from a stepped bore barrel.
Phil
Step bore barrels:
The propellant accelerates the paintball from zero to the set point (we will call it 300 for s&g). The majority of the acceleration takes place in the tight bore section at the back of the barrel. Partways down the barrel the bore steps up to a larger bore allowing the propellant to escape around the ball and out the front. A very small amount of acceleration takes place after the step as the paintball is still traveling along with the gas as it escapes. It takes more energy to accelerate a paintball from zero to three hundred in five inches than it would take the same paintball to achieve the same velocity in ten inches. You have less time to reach the desired velocity therefore you have to apply more energy. More energy equals more gas making the barrel less gas efficient. I have never owned or shot a Lapco but looking at the pictures you will notice that all of the porting is at the very end of the barrel. The barrel has a longer acceleration distance making the barrel more gas efficient(assuming it is not stepped). This is assuming that you have a good paint to barrel match. Obviously, taking into account all I have just stated, if your bore is larger than your paintball then you will experience poor gas efficiency. Here in lies one of the benefits of the Freak barrel. Yes it is stepped bore (Making it the least efficient barrel design) but you are guarenteed good paint to barrel match and the best possible gas efficiency from a stepped bore barrel.
Phil



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