Skout Evo L. P. Reg not “under powered”

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Drumsnguns

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Jun 14, 2016
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North Carolina, United States
Well oops, the topic should read L. P. Reg “under powered”. Don’t know how the word “not” got in there and don’t think you can edit the topic.

I find that my L. P. Regulator cannot go above 160 psi when the H. P. Reg is set to 1400-1500 psi.
When the H. P. Reg is set to higher pressures say for slugs the L. P. Reg can go up as high as 200 psi. Maybe higher with even higher H. P. Settings.
I also experience a gradual creep up of velocity over a magazine’s worth of shots when setting the HP reg for a specific velocity. Maybe a gradual creep up of 10-15 fps.
Anyone else see this w the L. P. ? Or velocity creep. I’ve rebuilt the refs once already.

Skout sent me a few washers to attain higher L. P. Pressures but I haven’t installed yet.

Thanks
 
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Understood and the gun shoots fine at LP=150-160. But watching a video from SKOUT about tuning a .30 cal, Bill Gardner sets the H. P. Reg to 13xxish psi and the L. P. Reg to 180-190. No way I can do that with mine. The end cap comes loose before I can get above 160.

But, as I said, the gun is shooting fine with the lower LP setting.
 
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manabeknives said:
I did read that you did a rebuild, but my first thought would be to replace ring 7017 on the piston of the lpr ..maybe a bad ring
Although I have an Epoch, the regulators are the same.
My setting are hpr@1500 and large @190.
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I didn’t do a proper rebuild but disassembled and inspected and regreased. No o-rings replaced.
It was suggested to clean them but I think I’ll re do it and replace the orings. Only 1800 recycles at the time.
 
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I have two new EVOs. The first one bought from High Pressure Pneumatics, the second ordered from Skout directly to be built to exactly match (physically, not the tune) the one they supplied to HPP. The two were received as follows:

First one (HPP): 2100 HPR / 250 LPR / Dwell 23
Second one (Skout): 2100 HPR / 190 LPR / Dwell 23

The first one I can set the HPR down to 1480-1500 and easily achieve 190 on the LPR. The second one at 1480-1500 I get around 170, give or take a little, before the knob starts feeling loose.

I did do some test shooting with the first one, so maybe it has broken in, but I don't know if that's why I can achieve 190 on the LPR or not. The second one I have not shot yet... only set it up to around 1500 HPR / 170 LPR (wanted 190) / Dwell 23 to get ready to test the JTS 22.07 gr pellets.

I'm very interested in why the second won't easily achieve 190, as I also took mine apart and found no apparent cause. When it was reassembled it was no different.

Maybe Luke from Skout will chime in for us.
 
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Chuck26287 said:
I have two new EVOs. The first one bought from High Pressure Pneumatics, the second ordered from Skout directly to be built to exactly match (physically, not the tune) the one they supplied to HPP. The two were received as follows:

First one (HPP): 2100 HPR / 250 LPR / Dwell 23
Second one (Skout): 2100 HPR / 190 LPR / Dwell 23

The first one I can set the HPR down to 1480-1500 and easily achieve 190 on the LPR. The second one at 1480-1500 I get around 170, give or take a little, before the knob starts feeling loose.

I did do some test shooting with the first one, so maybe it has broken in, but I don't know if that's why I can achieve 190 on the LPR or not. The second one I have not shot yet... only set it up to around 1500 HPR / 170 LPR (wanted 190) / Dwell 23 to get ready to test the JTS 22.07 gr pellets.

I'm very interested in why the second won't easily achieve 190, as I also took mine apart and found no apparent cause. When it was reassembled it was no different.

Maybe Luke from Skout will chime in for us.
Click to expand...
Yeah that’s why I started this thread. Some get up there and some don’t.
 
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Motorhead said:
At 1500 HP never found a need to be above 150 on LP .... Where on my early EPOCH at 1500 HP I'm generally at 135 LP there about w/o issues.
Am I missing something by Not having the firing solenoid at higher LP settings ?????
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I'm going by what Bill Garner told me in a conversation on October 21st... so only a few months ago. For the .22 cal JTS 22.07 pellets, he was very specific in telling me to set the HPR to at least 1500, the LPR to 190 (further stating "the LPR should be >180 and < 200, but 190 was best"), and Dwell is usually from 23 to 26.

I just found it odd that at 1500, one gun will not come close to achieving even the 180 on the LPR. Not that it won't work pretty well there, as it might. If it's common that some of these LPRs can't get above 160 or 170 at 1500 on the HPR, I'm surprised he'd say it should be at least 180. So, I'm not sure he's expecting us to not be able to achieve that 180 on the LPR. Just perplexed a little by the situation.

I'm sure it's not really that big of a deal, just hoping Skout will hop into the thread and shed some light as to what the differences between my two guns could be.
 
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Motorhead said:
At 1500 HP never found a need to be above 150 on LP .... Where on my early EPOCH at 1500 HP I'm generally at 135 LP there about w/o issues.
Am I missing something by Not having the firing solenoid at higher LP settings ?????
Click to expand...
I spoke with Keith in support and he said that if you follow the basic rule of the LP being 10% of the HP you’re good to go.
Bill Gardher prefers the 180-190 setting at any pressure ( if I understood him right).
Im getting good ES and SD numbers at 160 psi. So I guess it’s good.
I do have a bit of a velocity creep but I might do a reg rebuild.
 
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Dewy said:
Mine is the same as Drumsnguns can only get lpr to 150ish at 1500 hpr. I’m wanting to get a 30 cal barrel for it but will need to get the Lpr higher. Anyone found a solution for this problem?
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Contact factory ... They have a High Pressure kit, its actually on there web site too
 
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While it's true we can sometimes "overthink" things that cause us concern, the cornerstone of learning and improving is questioning and seeking the answer to "why is this happening" or even "how does this work". Whether it's a small concern that will not require any corrective action, or a major concern that will send us back to the drawing board, resolving these concerns almost always starts with thinking and asking "why".

The president of the company calls me to discuss some questions from an email I sent them. He tells me a very specific process to follow with the gun I purchased to tune it. I now have two absolutely identical guns. One can be tuned exactly as instructed by the company president. One cannot. He said "the LPR should be >180 and < 200, but 190 was best". This is, simply put, an upper and lower spec range. He didn't say "the LPR should as close to 190 as possible without going over 200 psi" (which might have been what Bill really meant, or the extrapolated statement you would come away with if you spoke with multiple techs at Skout, but I only had one Skout statement on this matter to ponder at that time). Both HPRs were set to within ~15 psi of 1500, so this appears to indicate a difference between LPRs. This was the only LPR spec I had been given directly from Skout, and I have two $2500 top-tier air rifles, but only one can be set to the specs I was given by the company. Regardless of whether achieving a minimum of 180 psi on the LPR is truly critical (I think it's probably not), if a situation where one rifle will achieve a given company spec and one rifle will not doesn't make me think and question why, I have no business owning rifles of this level. If this is overthinking... I'm an overthinker. I'll also add that almost every piece of great technology we have started with someone overthinking something somewhere in its development process. I'd even venture to say Skout has probably done a little overthinking in their day... and look what it has gotten us!
 
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Chuck26287 said:
While it's true we can sometimes "overthink" things that cause us concern, the cornerstone of learning and improving is questioning and seeking the answer to "why is this happening" or even "how does this work". Whether it's a small concern that will not require any corrective action, or a major concern that will send us back to the drawing board, resolving these concerns almost always starts with thinking and asking "why".

The president of the company calls me to discuss some questions from an email I sent them. He tells me a very specific process to follow with the gun I purchased to tune it. I now have two absolutely identical guns. One can be tuned exactly as instructed by the company president. One cannot. He said "the LPR should be >180 and < 200, but 190 was best". This is, simply put, an upper and lower spec range. He didn't say "the LPR should as close to 190 as possible without going over 200 psi" (which might have been what Bill really meant, or the extrapolated statement you would come away with if you spoke with multiple techs at Skout, but I only had one Skout statement on this matter to ponder at that time). Both HPRs were set to within ~15 psi of 1500, so this appears to indicate a difference between LPRs. This was the only LPR spec I had been given directly from Skout, and I have two $2500 top-tier air rifles, but only one can be set to the specs I was given by the company. Regardless of whether achieving a minimum of 180 psi on the LPR is truly critical (I think it's probably not), if a situation where one rifle will achieve a given company spec and one rifle will not doesn't make me think and question why, I have no business owning rifles of this level. If this is overthinking... I'm an overthinker. I'll also add that almost every piece of great technology we have started with someone overthinking something somewhere in its development process. I'd even venture to say Skout has probably done a little overthinking in their day... and look what it has gotten us!
Click to expand...
I was told the same thing when I picked my gun up at their shop. But after experiencing a leaky solenoid from possibly too much LPR pressure, I talked to the tech while he messed with my gun. He told me the solenoid won’t work until the LPR is high enough in relation to the HPR. So I just set my HPR where I knew it had to be for my favorite velocity and turned the LPR up until the gun fired. Been set that way ever since and the gun shoots exceptional. I’m 1,900/160. That’s outside this supposed magic 10%. But I personally don’t think the gun is really that picky about a couple percent. Guys are. Gun not.
 
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My understanding is that as long as there is enough pressure to unbalance the valve all is good, which is the reason why the LP is linked to the HP as the HP pressure rises the LP must also rise in order to unbalance the valve when the solenoid is triggered, it has nothing to do with achieving velocities required just simply opening the valve as long as it achieves this I can't see any reason for changes in pressure above what is needed.
 
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manabeknives said:
Hey Dewy
On the LPR, check the o-rings to see if the might be damaged ...OU 7017 and OU 9008
and check to see if the small plastic piece is whole and properly set VRG 106
Or just wait to talk to Keith or Darryl on Monday
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This did the trick. I replaced the OU7017 and VRG 106. I believe VRG 106 was the problem. HPR 1500 and LPR will now go over 200. Thank you much for the help.
 
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