Tuning Regulator creep

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This is the good ol honest truth why I prefer good unregulated guns. Sooner or later you may get those missed first money shots that you won't know till you missed and it's gonna be the guns fault.

There are many factory regulated guns that I have so far not experienced the first missed shot phenomenon.

None of my HW100s nor my HW110s nor my HW44s nor my RAWs nor my Daystates nor Brococks nor Taipan Veterans nor Mutants nor Crickets nor Vulcans nor Atamans nor Hubens nor SK19s nor Gauntlets nor Fortitudes nor Marauder Field and Targets nor any Edguns nor any Steyrs nor FWB FT nor any 10 meter rifles and pistols and the others I just make it a habit to waste/blow off the first 5 shots before doing any serious shooting or nowdays just store them right at their set reg pressures.




 
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This is the good ol honest truth why I prefer good unregulated guns. Sooner or later you may get those missed first money shots that you won't know till you missed and it's gonna be the guns fault.

There are many factory regulated guns that I have so far not experienced the first missed shot phenomenon.

None of my HW100s nor my HW110s nor my HW44s nor my RAWs nor my Daystates nor Brococks nor Taipan Veterans nor Mutants nor Crickets nor Vulcans nor Atamans nor Hubens nor SK19s nor Gauntlets nor Fortitudes nor Marauder Field and Targets nor any Edguns nor any Steyrs nor FWB FT nor any 10 meter rifles and pistols and the others I just make it a habit to waste/blow off the first 5 shots before doing any serious shooting or nowdays just store them right at their set reg pressures.



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I agree. I started with unregulated guns and am considering going back. I just wish there were more mid-high quality unregulated airguns available to choose from that can be purchased new. I am first and foremost a hunter. I never know when a shot will present itself, so first shot consistency is of the utmost importance, and you are much more likely to get it with an unregulated gun. For target shooting, you may have time to blow off 5 settling shots, but not practical in most hunting scenarios. 

After 25 years using airguns, I have come to the conclusion that 80% of airgun accuracy/functioning issues can be traced to 3 places: the barrel, o-rings, and the regulator.
 
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There's always a trade off. I have an unregulated gun I worked on to get it shooting where I need it for hunting and I have a higher end regulates gun which unfortunately has experienced reg creep. The unregulated gun after tuning is averaging about 50 shots at 34 ft lbs in 22 caliber where before tuning it was getting 70. My 25 caliber regulated gun is getting 80 shots a fill at 55 ft lbs but every so often I get that reg creep. So in short I like the consistent shot count of a regulated gun and the ability to adjust the reg versus an unregulated gun where most likely an adjustment you make will decrease your shot count and standard deviation. 
 
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This is the good ol honest truth why I prefer good unregulated guns. Sooner or later you may get those missed first money shots that you won't know till you missed and it's gonna be the guns fault.

There are many factory regulated guns that I have so far not experienced the first missed shot phenomenon.

None of my HW100s nor my HW110s nor my HW44s nor my RAWs nor my Daystates nor Brococks nor Taipan Veterans nor Mutants nor Crickets nor Vulcans nor Atamans nor Hubens nor SK19s nor Gauntlets nor Fortitudes nor Marauder Field and Targets nor any Edguns nor any Steyrs nor FWB FT nor any 10 meter rifles and pistols and the others I just make it a habit to waste/blow off the first 5 shots before doing any serious shooting or nowdays just store them right at their set reg pressures.



Click to expand...


I agree. I started with unregulated guns and am considering going back. I just wish there were more mid-high quality unregulated airguns available to choose from that can be purchased new. I am first and foremost a hunter. I never know when a shot will present itself, so first shot consistency is of the utmost importance, and you are much more likely to get it with an unregulated gun. For target shooting, you may have time to blow off 5 settling shots, but not practical in most hunting scenarios. 

After 25 years using airguns, I have come to the conclusion that 80% of airgun accuracy/functioning issues can be traced to 3 places: the barrel, o-rings, and the regulator.
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And owner.
 
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Yes, a tinkering owner or someone who thinks they know more than they do. can cause issues. The lack of a regulator just removes one of the variables. I'm not a tinkerer. All I want to do is put in air, load pellets and shoot. I want it to be accurate when I get it, and I want it to shoot where it shot the last time I used it, all other things being reasonably equal.
 
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The creep gets worse if there is a big delta between reg set point and the cylinder pressure. For example, a 130 bar reg set point and 250 bar cylinder pressure often is a recipe for a few wasted starting shots, even after a couple hours already.

Conversely, much less air seeps thru much more slowly if the cylinder pressure is only 20-30 bar higher than the reg set point. The advantage is you get 10 or so regulated & reliable shots for the hunt.

I find the chinese paintball story in the thread amusing as well. My thus regged Kral Jumbo (set point = 130) is creep free if I don't fill the bottle above 200 bar. Yes, I did spend a little time polishing the disk and other internals, and lubing. Many happy shots out of this deadly .25 !

🐦
 
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One thing about an FX Impact with a small amount of creep to start is that you can turn the power wheel up one notch higher for the first shot and then back down to the tuned position for the rest to skip any drop on the first shot. I find the creep in mine, which is very slight after just rebuilding the reg only drops the first shot by ~ 30 fps.
 
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Parrotculler goes into it up above. The high pressure and low pressure sides of the regulator are separated by a valve seat that comes together to form a seal as the low side climbs up to the setpoint. The more pressure on the high side, the more motivated it is to get through to the low side, slowly weeping through microscopic imperfections in the valve seat.

If the surface quality of the valve seat is sufficiently high quality, a regulator generally won't creep to any meaningful degree, and proper tuning will minimize or completely eliminate any effect on velocity.
 
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