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Mrod 25 tuning help
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All Springer/NP/PCP Air Gun Discussion General
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PCP/CO2/HPA Air Gun Gates "The Darkside"
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Mrod 25 tuning help
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Topic: Mrod 25 tuning help (Read 603 times))
Cody2306
Shooter
Posts: 87
yes
Real Name: Cody
Mrod 25 tuning help
«
on:
November 07, 2016, 05:47:49 PM »
OK I have a stock gen 2 mrod I tried to keep track of the stock settings but when trying to count the hammer stoke cw I lost count because it never stops turning... So I don't know where I am on that. But I tried to turn it ccw 12 turns . UT like I said I don't know where I am at in that... Now my goals are power and accuracy... Not as much concerned on shot count... I have a 12.5 hammer spring but haven't installed it yet...
I do t know what is a realistic power goal for stock mrod and or 12.5 hammer spring... BUT here is my string... I got quite a few errors probably due to indoor shooting..
Psi start 3,000-2100
1. 855.2
2. 852.1
3. Error
4. Error
5. 884.4
6. 873.8
7. 878.0
8. 857.2
9. Error
10.836
11. Error
12. 832.1
13. 831.8
14. 828.3
15. 826.2
16. 825.4. Oh yeah I was using jab exact 25.4
OK so once again. Vs is out 4.5 turns... I tried to go 12 turns ccw on hammer stroke. And I haven't touched hammer spring yet but I'm gonna try a turn or two in while I wait for advice.. thanks in advance .. soon I will be getting a war valve for more power but they are out of stock atm
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Galveston, TX
ackuric
Banned Members
Sharp Shooter
Posts: 943
yes
Real Name: Matt
Re: Mrod 25 tuning help
«
Reply #1 on:
November 07, 2016, 07:38:29 PM »
Probably a little too much hammer spring so I'd back it off a turn or two to achieve a slightly flatter string, ideally for a stock setup your probably going to get a 83X-85X string over 16 shots.
One trick on settings for both stroke and spring tension is to set them to 0, I believe thats full CCW on both settings and then you can count turns going CW, both settings should just freely spin even once you reach their max, hammer spring definitely does, the manual states how many turns which I believe is 6 on spring and 12 on stroke, I noticed I was able to get about 7 on spring when I was stock by maxing it and counting the turns to get it to reset to 0 which was 7.
War valves have been out of stock for well over a year and probably will be for a long time...I'd recommend looking elsewhere for a valve.
I'd also recommend an ssg, I know shot count isn't a concern but it improves on accuracy at longer ranges with how it flattens a string immensely when comparing a stock 16 shot vs an ssg cherry picked 16 shot
«
Last Edit: November 07, 2016, 07:42:15 PM by ackuric
»
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Westminster Colorado
.25 Ackurized 26.75"- 40" M-rod custom carbine 4.7lbs
.04" Valve Stem / .2255" Seat / .212" Ports
Peek Poppet @ .25" / Lane Reg / Custom SSG's
5lb Valve Spring / 25 gr Hammer / 25cc Plenum Ext. / 7.7# hammer spring
16 Shots @ 60 FPE - 1.2 FPE/CI (33.9 gr)
32 Shots @ 52.5 FPE - 1.55 FPE/CI (33.9 gr)
48 Shots @ 41 FPE - 1.88 FPE/CI (25.4 gr)
72 Shots @ 25 FPE - 2.02 FPE/CI (19.91 gr)
Cody2306
Shooter
Posts: 87
yes
Real Name: Cody
Re: Mrod 25 tuning help
«
Reply #2 on:
November 07, 2016, 08:42:19 PM »
Hey it's ruff to get somebody willing to help... Is it possible I can shoot you a message when I get to do some more strings. And I was looking I to the ssg as well.. where can I find a good valve for more power .. I would be happy with 70 -80 fpe with good accuracy and small fps spread
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Galveston, TX
ShawninIL
Expert
Posts: 1017
RAMADA GANG Charter Member
Real Name: Shawn
Re: Mrod 25 tuning help
«
Reply #3 on:
November 07, 2016, 09:04:10 PM »
+1 on the SSG. I have a WAR valve that I never installed I might be willing to let go. Shoot me a PM if interested
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IL
And then I heard the voice
That said "You have a choice,
The hammer or the nail"
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All Springer/NP/PCP Air Gun Discussion General
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Mrod 25 tuning help