Well I got my new Automag from The MagSmith and I have a question. I've read through a ton of posts and threads on similar topics but I haven't found an answer that works for me. I don't seem to have any reactivity. I've tried shimming the on/off, I currently have 2 lvl X and 2 ult shims, it had 5 ult when I got it. I got up to the equivalent of 8 ult shims when I got a wierd leak when I fired. Do I just need to break it in or am I missing something in order to get it reactive?
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The ULT actually reduces reactivity in the RT/Xvalve series, it's a side effect of lightening up the trigger pull. If you want reactivity, ditch the ULT and go with an RT Pro on/off, no shims at all.Originally posted by Gilman -
You can get the ULT to be somewhat reactive, but you have to jack the input pressure up to around 1000psi, which requires an adjustable tank. If you have a fixed output tank, you will have to decide which is more important to you, light trigger pull or reactivity.
And welcome to AO!Comment
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Thanks for the replies. I'm not looking for the full auto effect or massive reativity, I just want it where I can get a 3 or 4 shot bursts. I keep seeing videos of people just ripping with their mags and they state they have an X-valve and ULT. I haven't noticed if they have adjustible tanks. How is the efficiency running it at 900-1000 psi. I'm used to trying to work a gun down in pressure not up.Comment
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its not nesecarly how high the psi is its really how fast the air can get in (remember its just how fast the air gets through the vavle reg so a tank at 900 spi that can recharge faster than a tank that has 1k out put will probably give the same reactivity about)
my friend has a tac one with stock ult pushing a hp crossy and it has a little bounce and is walkable.
i would get a very fast rechagring reg over adjsutable IMHO unless you want insane reactivity.
-mattComment
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The input pressure won't affect the efficiency of the gun. The pressure used inside the chamber isn't affected by the input pressure. The input pressure does affect the recharge rate as mentioned previously.Originally posted by GilmanExcept for the Automag in front, its usually the man behind the equipment that counts.Comment
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and by increrasing the recharge rate teh air heats up more and has a small psi spike for a second, thus pusshing on the pin harder to reset the trigger, and there fore more bounce.
-mattComment
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The air doesn't heat until it recompresses in the front chamber. Its the compression that generates the heat. Its there for every recharge but quickly cools. As the air cools it loses pressure as well. Most shots are using cool air. When you rapid fire, you shoot immediately after a recharge before the air has time to cool. Thus, the air is still hot and has more pressure. This is the shoot-up that people experience with the retro/X valves.Originally posted by SR_matt
Unfortunately, the mag is designed in such a way that it does require a high pressure input to maintain a good recharge rate. This is due to the small size of the chamber and a higher chamber pressure. In order to maintain a high pressure differential between input and chamber pressure, the output from the bottle has to be quite high.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
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when i was looking at an animation the way i understood it was that the heating up was what gave the pin a little more kick to resent the trigger.
-mattComment
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No, the extra kick from the retro valve comes from the fact that the air hitting the top of the pin is coming directly from the source and not from the regulated air. There is higher pressure and higher volume of air in this area initially after you fire the gun.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
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are u sure? becarse the area the on off is pushed back then lets air in to the resevor so if it was the sources psi ud begetting 800-1200 psi in
-mattComment
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Yes, the source air is what flows into the chamber through the on-off. There is a feedback port at the back of the on-off. The pressure exerted on the regulator valve pin assembly through the feedback port, shuts off the source air when the chamber pressure reaches the preset value which is set by the user based on velocity required. The flow of high pressure air directly from the input is why the retro valves have such high recharge rate.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
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hmmm maybe i am mixing diagrams up but teh way i understood it was totaly differently maybe we are both saying the same thing just in 2 different ways, im to tired to think about it now though.
-mattComment
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