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Psi Gauge Mod, Sheridan Blue Streak (Benjamin 392 Or 397)...


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4 replies to this topic

#1 supak111

supak111
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Posted 15 April 2013 - 06:34 PM

First ever PSI gauge mod.  You can also replace the gauge with a
charging niple from a paintball bottle so you could run your gun from
paintball CO2 or HPA bottle.  I will probably drill another hole on the
other side for the charging nipple.

 

(also pump mod, lighter hammer spring, and
a lighter bolt spring by cutting down the white plastic check valve in
half)

 

Drilled a hole into the gun and the bolt,
cleaned out all the sharp edges and shavings and screwed a paintball gun
bottle 1-5k psi gauge into my gun.  Now I can see how much pressure I
have in my gun before I shot.

 

With stock non moded pump
I could only get upto 1200psi no matter how many times I pumped.  With
the pump mod, I can now reach 2000psi with about 15 pumps.  Whats also
cool is stock pump required 15ish pumps to get to 1200psi, with moded
pump I can get to 1200psi in 6 or 7 pumps only.

 

Also
now when I pump my gun to 2000psi, since I did a lighter hammer spring
by cutting about 4 rows from the spring I can shot the first shot and my
PSI will only fall from 2000psi to 1200psi.  This way I can still take a
second shot right after without having to pump more.  After second
shot PSI is 0.

 

PS.  I ordered a 0-3k psi gauge for more accurate reading

 

psig.png


Edited by supak111, 15 April 2013 - 06:44 PM.


#2 supak111

supak111
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Posted 15 April 2013 - 06:38 PM

First ever PSI gauge mod.  You can also replace the gauge with a charging niple from a paintball bottle so you could run your gun from paintball CO2 or HPA bottle.  I will probably drill another hole on the other side for the charging nipple.

 

(also pump mod, lighter hammer spring, and
a lighter bolt spring by cutting down the white plastic check valve in
half)

 

Drilled a hole into the gun and the bolt,
cleaned out all the sharp edges and shavings and screwed a paintball gun
bottle 1-5k psi gauge into my gun.  Now I can see how much pressure I
have in my gun before I shot.

 

With stock non moded pump
I could only get upto 1200psi no matter how many times I pumped.  With
the pump mod, I can now reach 2000psi with about 15 pumps.  Whats also
cool is stock pump required 15ish pumps to get to 1200psi, with moded
pump I can get to 1200psi in 6 or 7 pumps only.

 

Also
now when I pump my gun to 2000psi, since I did a lighter hammer spring
by cutting about 4 rows from the spring I can shot the first shot and my
PSI will only fall from 2000psi to 1200psi.  This way I can still take a
second shot right after without having to pump more.  After second
shot PSI is 0.

 

PS.  I ordered a 0-3k psi gauge for more accurate reading

 

psig.png


Edited by supak111, 15 April 2013 - 06:42 PM.


#3 supak111

supak111
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Posted 06 August 2016 - 11:19 PM

here is the image again

 

95HMRzr.jpg


and another copy if that one get

 

s deletedpsig.jpg



#4 WesBob

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Posted 27 May 2017 - 08:42 PM

Old thread here, so sorry for reviving, but noticed no one had replied. Must be short of tinkerers on this forum! Great idea anyway, did you ever end up putting the fill nipple on the other side? I did something similar with my 1322. I tapped into the side of the 1322 valve like you did then attached an Asa adapter with a pressure gauge on it and a 12g co2 to paintball fitting adapter. This way I can either use co2 cartridges, or with an empty cartridge in the adapter, I fill the valve and cartridge with the guns forearm pump, which will give around 9 or 10 shots at around the Canadian legal limit of 500fps. That is only filling it to around 1200psi. With your gun set up sounds like it's set for higher pressure so you could fill it to 1600-1700psi and get higher powered shots in that 9-10 shot range. You'd need to put a hammer spring adjuster on the back end to get things balanced right. Cheers!

Attached Files


Edited by WesBob, 27 May 2017 - 08:52 PM.


#5 WesBob

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Posted 27 May 2017 - 08:58 PM

Thought I should add that 1800psi is all these cartridges are rated for so probably better to stick to 1500psi as a limit, but I definitely wouldn't push it past the 1800psi rating! That is asking to get killed. Anyway I stick with under 1500psi myself for safety.




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