Need help with SSG adjustments in Mrod
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Need help with SSG adjustments in Mrod
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Topic: Need help with SSG adjustments in Mrod (Read 1010 times))
Johnsairmadness
Plinker
Posts: 134
yes
Need help with SSG adjustments in Mrod
«
on:
May 22, 2016, 03:12:08 PM »
Ok, I have a Gen 2 Mrod .25cal. Installed the Wicked air SSG with no directions but with the help from other threads. I have the hammer spring nut tightened all the way down, transfer port set at 4 turns out, screw SSG back plug flush with receiver just to have a little play when hammer is cocked. Fill to 3000psi using 25gr. JSB
874fps. 861
872. 859
868. 855
873. 859
860. Eer
867. 851 Ending pressure 2400
867
863
Any suggestion?
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Indiana, St. Anthony
PBguns
Sharp Shooter
Posts: 824
yes
Real Name: Mike
Re: Need help with SSG adjustments in Mrod
«
Reply #1 on:
May 22, 2016, 03:27:16 PM »
Less preload....(start around where the nut is halfway down threads). Not sure how many turns on VMS (velocity metering screw) Just make sure it's wide open.
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Orange County California
aceflier
Expert
Posts: 1643
yes
Real Name: Tim
Re: Need help with SSG adjustments in Mrod
«
Reply #2 on:
May 22, 2016, 03:28:05 PM »
Less hammer spring. You have too much.
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Indiana
Beeman P17
Crossman 1377
Daisy 880
Ruger Blackhawk .177
'72 Dan
Benji NP XL 1100
Hatsan Flashpup .22
Benji Mrod .25 now 40-80fpe (mods by shorty)
Airforce Texan .257
Airforce Texan .457 DonnyFL Emperor Noble Valve 700+fpe(NUAH Expert)
Altaros compressor
98cf Air Venturi 4500psi
88cf Scott SCBA
45cf MSA SCBA
68ci (pony bottle) Pure Energy 4500psi w/Ninja 3000psi reg
Show me a coyote!
Johnsairmadness
Plinker
Posts: 134
yes
Re: Need help with SSG adjustments in Mrod
«
Reply #3 on:
May 22, 2016, 03:44:03 PM »
If I go less I don't get the fps I want. It drops down to 832fps. So, I guess I need to get a different hammer spring? I want my fps to be around 900-920fps.
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Indiana, St. Anthony
aceflier
Expert
Posts: 1643
yes
Real Name: Tim
Re: Need help with SSG adjustments in Mrod
«
Reply #4 on:
May 22, 2016, 04:17:32 PM »
The SSG will get you more shots at medium power. 840-870fps 24-27 shots. A stock valve and 10lb spring you might reach that but it won't be for many shots. I'm in the process of putting in a modified stock valve and opened the ports to get more FPE. So far I'm at avg 925fps for 16 shots. High 933 Low 918. That's with Shorty's modified valve and Dual wire 17lb spring. When I recieve a 3/16th transfer port those should climb higher.
«
Last Edit: May 22, 2016, 04:29:55 PM by aceflier
»
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Indiana
Beeman P17
Crossman 1377
Daisy 880
Ruger Blackhawk .177
'72 Dan
Benji NP XL 1100
Hatsan Flashpup .22
Benji Mrod .25 now 40-80fpe (mods by shorty)
Airforce Texan .257
Airforce Texan .457 DonnyFL Emperor Noble Valve 700+fpe(NUAH Expert)
Altaros compressor
98cf Air Venturi 4500psi
88cf Scott SCBA
45cf MSA SCBA
68ci (pony bottle) Pure Energy 4500psi w/Ninja 3000psi reg
Show me a coyote!
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All Springer/NP/PCP Air Gun Discussion General
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Need help with SSG adjustments in Mrod