2,500 Shots off a Mag; efficiency upgrades?

[Havoc_online]

Originally posted by speedyejl
Actually Smart Parts and WGP advertise their guns as being closed bolt. Not being more acurate or having better distance because of it.

dont remember off the top of my head(I'm not saying your wrong), but I've been reading some of the newer ads of markers(dont remember what type) that boast "true closed bolt accuracy" I'll try and dig up something.

[Jack & Coke]

Where do you think the mag can improve in efficiency?

Fiddle with the pressure/volume ratio?

Better bolt/breech seal?

I wonder what percentage of gas is wasted (i.e. not pushing the ball)? How much goes back up the feed tube?

What do you think?

[mykroft]

Upping the operating pressure does improve efficiency on a mag, compare the Smartvalve to a stock Mag, 10% lower pressure, 10% lower efficiency. Dump chamber guns are inefficient compared to poppet valve guns (Shocker, Matrix and Mag are the only common dump-chamber designs, average to horrible efficiency).

A well broken in Viking or Excal might hit 2400 rounds under the best circumstances, 2700 is smoking crack. You can get a Cocker up there too. 2000-2200 is a more realistic expectation for a Viking or Excal after breakin.

[Havoc_online]

pressure/volume ratio

[Kevmaster]

yeh, when you are doing mods and such to the valve, you can increase pressure and lower volume and decrease pressure and increase volume. at some point (as shown below) there is a happy most efficient point. you just have to find it


(note: the pressure numbers are a little off for the mag. I made this for the Rainmaker)

[Paintballer86]

Originally posted by speedyejl
O wow, omg wow. Your formula takes no account for the volume of air usess. I've put my dwell all the way up to 9ms and I've lowered my inline to 80psi on my Impulse (this was before my LPR so the solinoid was also at 80psi) and it shot 290fps. Guess what my eff was 600 balls from a 68/45!! Acording to your formula I should have been getting 3,825 balls, and belive me I wasn't, I could actually see the dial on my tanks gauge move.

If you want a different perspective a stock Spyder (lets say a Shutter) would get 382 balls from a 68/45. Which is just more bs, in reality they get more around 1000.

BURN ON paintster14

[FreshmanBob]

Originally posted by speedyejl
Haha, no

I have chronoed my Impulse running at 80psi with a dwell of 20beeps (9ms, its the highest that a normal board will allow one to go) at 290fps.

You misunderstood me. I said you need to increase the volume to get it back up to FPS, and YOU DID. If you leave the volume (dwell controls the volume of gas used) as the same as you do on twice the pressure, you'll get much less velocity.

[speedyejl]

I saw your edit but I wasn't really sure what you meant since you didn't mention efficeny going down with the volume going down. Ok fair enough

[FreshmanBob]

cool cool

[la690]

Re: Re: honestly this doesnt sound too far off

Originally posted by Kevmaster


"What you've just said is one of the most insainely idiotic things I've ever heard. At no point in your rambling incohearent response were you even close to anything that could be considered a rational thought. Everyone in this room is now dumber for having listened to it. I award you no points and may God have mercy on your soul."

whats that from?