Gas efficiency question

[Jazzman]

I'm trying to make my mag as gas efficient as possible. After digging through various threads, it seems that a barrel with little or no porting plays a big part in making a gun more efficient. I'm not mathematically inclined (cut me some slack, i'm a musician. the math stuff is way over there on the other side of the brain), so could someone put it into perspective for me? Shouldn't the amount of gas used to propel a ball stay the same, regardless of barrel size, shape, porting, etc? Doesn't the regulator spring control this?

And if barrel length and porting can effect pressure that much, shouldn't you have to re chrony every time you switch out barrels?

Thanks y'all.

[hitech]

Re: Gas efficiency question

Once the ball passes the first port hole all the pressure is released. The rest of the barrel is drag and slows the paintball down. You have to adjust for this by accelerating the paintball past your desired speed so it can slow down. It's not necessarily that much.

In general (extremes ignored) the tighter the paintball fits (i.e. seals) in the barrel the less gas used.

Originally posted by Jazzman
And if barrel length and porting can effect pressure that much, shouldn't you have to re chrony every time you switch out barrels?

YES.

[devingoode]

a freak system will help w/ gas, a good paint to barrel match is about as much as you can do w/ mags cause they operate at 800 psi so you cant regulate down the air usage so a freak w/ inserts so you can get the best insert for your current paint will be the best way to go