bps problem with my new rt ule NEED HELP PLEASE!

[MR.DUCKY]

SO my brother bought a tac one years ago and i have always admired it so i finally decided to buy an automag a few weeks ago.
i decided to go with the rt ule because i like the body style a little better than the tac one(i dont ever use rails when i play so i figured i didnt need them)but when i aired it up for the first time to test fire i realized that the rate of fire was way to high for me to use at my fields(both limit me to 12 bps) and the lowest i have managed to get out of the marker is 19 bps.it is very difficult to fire 1 shot at a time.this is my first automag so im not too familiar with it yet and need some help.
im using 2 shims in my lvl 10 bolt kit,with the smallest carrier,the longest spring,1 shim in my ult kit, and have 850 psi through my reg.please help

[NU_METAL]

How lucky are you to obtain a 19bps automag ,for your first one ! No adjusting , just touch the trigger and its 19bps pow LOL
What i do @ the chrono is just hold the trigger down between shots for a sec as to not activate the R/T

Or you could change the ULT out for a bone stock on/off and pin in the X-valve?

You should not be getting this " out of control R/T effect" with a 850psi reg output ? R u sure its 850? because it sound like your running 1100psi to your valve
Is it a Ninja SHP ?

[Nobody]

Pull out the on/off pin and see what the length of it is. Use a digital set of calipers. Anything less than .740 and you will Rat greatly, off a 800psi out tank.

Also check the output of your tank. Make sure that it isn't putting out a higher pressure than you suspect.

Now, if you have no clue what i am talking about, nor the tools to check the pin length, then get a vert adapter and use a good HPR. You will have to use that to turn the pressure down so that it won't RT. So basically you are choking out the gun.

Finally, the L10 has NOTHING to do with RoF, or how fast it can shoot. The only thing the L10 does is preventing chopped balls.

[Cyco-Dude]

Pull out the on/off pin and see what the length of it is.

he said he has a ULT.

i would take that valve apart and inspect it; 19 bps with 850 psi input and a ult with one shim? i think something is broken, or you are very wrong about your input pressure! LOL! check the bolt lip and sear edge that catches the bolts for excessive wear too.

[maniacmechanic]

he said he has a ULT.

i would take that valve apart and inspect it; 19 bps with 850 psi input and a ult with one shim? i think something is broken, or you are very wrong about your input pressure! LOL! check the bolt lip and sear edge that catches the bolts for excessive wear too.

I don't know about this ,,, I've had some valves that just RT better than others

[athomas]

I don't know about this ,,, I've had some valves that just RT better than others

The ULT was designed to prevent runaway using a normal setup. With a standard 850psi input and only 1 shim in the ULT, the trigger pull should be light without any runaway at all. What is the velocity of each shot as it is firing at 19bps. Is there drop-off or is the velocity constant?

Something is out of whack. Check the ULT top orings, bolt lip, and sear to start. If you can get another bottle, try it just to rule out a higher than expected output.

[MR.DUCKY]

Pull out the on/off pin and see what the length of it is. Use a digital set of calipers. Anything less than .740 and you will Rat greatly, off a 800psi out tank..

Mine measured .716.could that be the problem?

[BigEvil]

Mine measured .716.could that be the problem?

Emag pin = .712 so yeah that could be. Get a .740

[Cyco-Dude]

Mine measured .716.could that be the problem?

are you sure you have a ult on/off? sounds like you have an rt on/off with the wrong length pin!

Emag pin = .712 so yeah that could be. Get a .740

why a .740, and not a .750? isn't .750 the correct length?

[BigEvil]

are you sure you have a ult on/off? sounds like you have an rt on/off with the wrong length pin!


why a .740, and not a .750? isn't .750 the correct length?

You can go .750 and it should work. You will be much happier with a .740 though Every single one of my RTs and my classic mags have RT on/offs with .740 pins

[vintage]

AGD no longer sells a .750 for one thing

[athomas]

Mine measured .716.could that be the problem?

Are you sure it is a ULT and not just a retro on-off with a shim installed? The shim would make the pin appear to be even shorter than the measured 0.716.

[BigEvil]

Are you sure it is a ULT and not just a retro on-off with a shim installed? The shim would make the pin appear to be even shorter than the measured 0.716.

THe ULT pin itself is .735 or .740, I forget exactly. If he measured tip-to-tip that doesnt change. The height of the ULT body does if Im not mistaken.

[MR.DUCKY]

You should not be getting this " out of control R/T effect" with a 850psi reg output ? R u sure its 850? because it sound like your running 1100psi to your valve
Is it a Ninja SHP ?

its a crossfire reg that i cant seem to find any info on but for one reason or another feel like it was 850.i also tryed a guerilla reg and a ninja(but not a shp)they all had the same result,except for the ninja which leaked uncontrollably through the asa.
i could be wrong about the pressure but i doubt that all three tanks were above 1000 psi.

[BigEvil]

There are a bunch of different factors that can come into play. Make sure you have all of your orings firstly. Secondly, there could be a max of 6 ult shims in there. Remove 1 at a time and see if that helps. Removing shims effectively lengthens the pin length and should slow the gun down. Thirdly, inspect the bolt lip and sear for excessive wear. It could be that they are not catching.


Also - depending on what type of hardware you have, something else might be causing the issue. Is it an AGD grip frame? Rail? Are the front and read frame screws snug?