Daystate Daystate Revere .177 regulated tuning

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Mwarrior50

Mwarrior50

Member
Apr 20, 2018
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CA, United States
Hey Guys! I bought a used Daystate revere .177 regulated from AoA. It shoots great, and overall a nice rifle to use. That being said, I do have a question about the shotcount. The regulator on mine is set to 160 bar, and from 250 bar, I get probably ~45 shots until I hit about 150 bar. (untested, need to actually do a shotcount one of these days). The numbers from AoA when they sent me the rifle: 5 shots, spread of 7fps, SD 2, minimum fps of 850 and max of 857, with a 10.3gr pellet. So about 16.52 to 16.8fpe.

I was wondering if this is infact, factory specs, or if I need to adjust the regulator or whatnot. My goal is to have ~19.5fpe with maximum shotcount. I feel that the regulator is a bit high for this powerlevel, but this is my first regulated gun.

If anyone has any experience tuning a revere regulated, please feel free to reach out :)
 
Doesn’t sound right. My .177 Revere from factory is set to 130bar doing +75 shots with 10,3grain JSBs @ 18 ft/ibs. That setting it comes with from factory is the optimal setting shooting pellets with optimal accuracy. Shooting 20grain ZANs it does +14 ft/ibs but with great accuracy. One can play the hammerspring so it does 22•23 ft/ibs shooting 22grain solids but only for some 26-28 shots.
 
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I think that your rifle is tuned pretty much in its sweet spot now. I have one also and it's a favorite. But, it is not a design that accommodates high power or large shot counts. As with most European rifles, the original Revere platform was probably designed as a sub-12 fpe rifle, so its power is already stretched beyond that parameter. My suggestion is to enjoy it for what it is or look to another rifle for greater power and capacity.
 
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160 BAR sound insanely high to me, but not familiar with this platform

My friends snowpeak also seem to require a high regulated pressure, i just assumed it was due to a fairly small transfer port.
In my own Two rifle with 700 mm barrel at the rock bottom reg pressure of 56 BAR i shoot +10grain pellets well into the 900 FPS speeds, really too fast for best results.
But that rifle have a HUGE dual transfer port - pin probe and MAX length " runway " so i shoot 24 grain slugs with pressures like you have on that Daystate.
 
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rong1966 said:
Mine came at 140 bar on the regulator and shoots the 10.3's at 905 fps. I haven't measured the shot count but it is around 70. I played around with the hammer throw adjustment and if I reduced velocity the fps spread got bigger and didn't tighten until around 900 fps.
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If you are getting 70 shots on reg, that's incredible! I think my rifle came with the reg set around 150-160 and I haven't changed it.
 
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Not familiar with the platform, but specs say otherwise.

Screenshot_20250210_095639_Chrome.jpg
 
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Something to keep in mind, there can be a big difference between shots per fill, and shots on reg. At some point after shooting down to the reg set point and below, velocity and accuracy will be compromised. Exactly where that point is depends on variables such as distance to target and the required accuracy to hit it. I don't know how Daystate defines that spec, but it would be interesting to know.
 
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As rong says, I do not know about that gauge. My reg was set at "160b" as received from AOA and I have no troubles getting 60 shots running high 16fpe to low 18fpe depending on pellet. The sd are very low on 10sh strings. This was with 250b fill pressure.

EDIT! make that "150b" on reg......my .22 Ghost is 160b...still, I don't really believe that gauge...

I would not bet the farm on what that little gauge indicates.
 
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Mwarrior50 said:
Hey Guys! I bought a used Daystate revere .177 regulated from AoA. It shoots great, and overall a nice rifle to use. That being said, I do have a question about the shotcount. The regulator on mine is set to 160 bar, and from 250 bar, I get probably ~45 shots until I hit about 150 bar. (untested, need to actually do a shotcount one of these days). The numbers from AoA when they sent me the rifle: 5 shots, spread of 7fps, SD 2, minimum fps of 850 and max of 857, with a 10.3gr pellet. So about 16.52 to 16.8fpe.

I was wondering if this is infact, factory specs, or if I need to adjust the regulator or whatnot. My goal is to have ~19.5fpe with maximum shotcount. I feel that the regulator is a bit high for this powerlevel, but this is my first regulated gun.

If anyone has any experience tuning a revere regulated, please feel free to reach out :)
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Yeah, you need to check the regulators set-point. Depending on barrel length, .177 requires between 110/125 bar. I can’t imagine any .177 cal. needing 150 bar 😵‍💫, unless the barrels extremely short (not OEM).

Sounds like these are .25 settings/specs.

Only one way to find out …. do some tinkering.

With optimal regulator, valve, transfer/barrel porting, hammer spring settings you s/d able to get 60/70 shots per fill👍.
 
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