Woe is me! I need a little help guys

Forums PCP Airguns Woe is me! I need a little help guys

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    JimNM
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    I screwed up fellas.  Hat in hand I stand before you to admit my foolishness and ask y’all for some help.

    I had my Woods Walker P-Rod shooting damn fine and I fell for the social presure to toss the stock barrel for a fancy schamcy custom barrel and a bigger TP just cause it was only 10.00 more.  To add to my error, I screwed around with the hamme and spring settings before I got my hands on a chronograph. 

    over 1000 pellets later, I am not convinced that I made a single good decision the day I broke the seals on the gun.  I even swapped the bolt handle to left hand, and I regret that too.

    I want my sweet shooting W-W back!  Tomorrow will see the stock barrel put back in service and the bolt handle back to right hand side.  What I need help with is finding the tune of the hammer and spring that made my gun so good before I pooched it up.

    Does anyone have a clue of what the crosman factory setting should be for the hammer and spring adjustments?

    I know better than changing 4 things at once. .. man I was stupid when I did that.

    Thanks for the help guys.

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    zx10wall
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    Every gun is not the same. In fact, I would say that each gun is a bit different. Anyway, I looked around and found this for you:

    Throw:1cw, Spring:7cw 2700-1600psi 678avg, ES-30,SD-10 14.3pellet 24shots. With 14.6H&N’s probably around 650avg.

    That should get you in the ballpark. 

    Here re is a video you could watch for tuning help:

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    Dartagnan
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    Sorry to hear your upgrade did not work out.  The last record I have with the PROD with stock spring and hammer was HAMMER=0  SPRING=5.5   that’s with a fill of 2900psi. That should get you close. Good luck 

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    fz1yamaha
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    My factory p-rod settings H/T-1/2cw -H/S-51/2cw was pretty good out of the box.13-14ftlbs i went to 6cw hammer spring was [email protected] 615 and back585 24 shots , hope this helps -swap out enough to get your tune back, then switch barrels.I had a very accurate p-rod stock,And I had to play with it,lots of reading, head scratching and air.Now its an amazing shooter.I didnt try all mods at once though ,your gun is still there, just finding it again, good luck,Something so much fun can b so frustrating

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    JimNM
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    Great info guys.  I know better than to do techie stuff after I work a midnight shift and before I sleep.  The blame is all on me for getting dumb with the project.  The gun has dropped from an obsession to somewhere between laundry and dishes on the “wanna do it” list.  That must not be allowed.

    I get to work day shift the next threee weeks… so I will find that sweet Prod again!

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    Jonah
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    According to Crosman, the settings from the factory are HS 4, HT 4.  And that was what mine was when I received it.

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    zebra
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    You’re in good company. A lot of us have been guilty of messing around with our airguns before knowing if the gun needs it, or what our mods will do to accuracy. It’s part of the learning curve.

    I have come to believe in the “if it ain’t broke” approach to my air guns or in letting the pros handle it if they need work. 

    Out of interest, what were you trying to achieve with the hammer spring mods? Was there an accuracy issue before? 

    Also, what makes you think the new barrel is the problem? I.e. Could it be that the new barrel just likes a different pellet etc? Or mybe the new barrel will work well once the hammer spring is fixed?

    Is the new barrel one of the Marmot Militia drop-in replacements? My understanding is that these are among the best. 

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    JimNM
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    The new barrel is lost in the dust of the multiple mad cap changes.  The TP was put back to stock early on.  The crony was used to get a decent ~12-14 FPE string. Once dialed to that point, I went back to paper shooting.

    Stock, I was under $.25 piece at 30 yards.  Now, I am a 4″+ at 30 yards.  The gun shoots like a shot gun.  I do get 2 or 3 pellets nearly touching, out of 24-32.  Being on the bottle makes no difference.   Consistent pellet speed is nothing if I can’t hit for nothing.

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    Dairyboy
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    I do gotta ask what pellets your shooting.

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    JimNM
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    Got it close with the 4.5 and 4 recipe.   Groups back down to quarter size and much better air rationing.  From 3k to 1k, got in 6 mags for 48 shots.  All but the last 1 or 2 were where I expected them to be.  Middle mags show SD around 8-9 and 13 FPE.  Much happier with a better shooting gun now.

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    JimNM
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    CPHP and CPD… what I have on hand and what I prefer to stay with for availability reasons.

    14.3g. And the was supposed to be 4 inches”, not four feet ‘

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    fz1yamaha
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    Member

    My (after market barrel for p-rod) really loves softer jsb pellets,all of them from 13 to 18 gr.I just went out back and tried [email protected] ( bad  ),hard to even push bolt home.you might think about The 14gr.jsbs wouldn’t change fps much if at all ,and the softer pellet,tighter barrel might be the ticket.Ya might feed the fancy barrel, fancy food.

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    JimNM
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    True words!  I had to find the confidence in the gun by going  back a known benchmark. 

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    zebra
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    It’s not necessarily a problem if a new barrel prefers different pellets. Trying a range of different pellets would be one of the first things I would try to improve accuracy.

    Even in my most accurate guns, using the wrong pellet can produce poor results. I like those pellet samplers as a way to find the right one for a new gun. 

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    zx10wall
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    Who made the barrel you tried? 

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    JimNM
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    I would rather not say, as I am sure the malfunction was caused by my lack of discipline.  It would be unfair to blast the barrel maker (who does recomended a different pellet) when my biggest problem was the HS and HT settings.  Once I am fine with the setup again, I may swap barrels again.

    one thing I did notice, was by turning the barrel shroud, I walked the poi around the clock from 6 o clock low to 12 o clock high about 3″ from point of aim. .  The same shroud and ldc on the stock barrel does not do this.

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    zx10wall
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    “JimNM”I would rather not say, as I am sure the malfunction was caused by my lack of discipline.  It would be unfair to blast the barrel maker (who does recomended a different pellet) when my biggest problem was the HS and HT settings.  Once I am fine with the setup again, I may swap barrels again.

    one thing I did notice, was by turning the barrel shroud, I walked the poi around the clock from 6 o clock low to 12 o clock high about 3″ from point of aim. .  The same shroud and ldc on the stock barrel does not do this.

    
I doubt it was your setting that caused an issue more than your pellet choice for the barrel. I can tell you this, I bought a used, off the YF classifieds, supposedly marmot militia hammer forged barrel and shroud for a Prod. It could be that it wasn’t genuine but it matched the description and lengths of the MM specs. It shot like dung with all pellets. I put the factory barrel back on which actually shoots very good with CP and H&N FTTs. I just wanted a longer barrel for more fps. It did increase the speed but accuracy was trash. 

    I cleaned and polished it in a attempt to make it right. It didn’t get better. I pushed JSB pellets through it. It had an extremely tight choke. I ended up cutting a small portion of the choked area off and recrowning it. The accuracy improved but not good enough. Tried many different pellets. I threw it in the trash as I could never sell it to someone knowing that is was inadequate. I hear folks rave about the aftermarket Prod and Mrod barrels but I had a bad experience with what I bought used. 

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    LIVIT
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    Jim, that sounds like barrel indexing. Seems strange that the shroud is doing this or am I missing something…

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    JimNM
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    No, barrel did not move

    yes, o ring  at the barrel.   The shrout binds up on the set screw if the set screw is not tight to the barrel and the top set screws were snug to the point of creaking when removed.  The barrel was tight.  The ldc was very tightly mounted to the shroud.

    Thanks for the advice guys,I am considering everything.
     

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    Drumsnguns
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    A lot of answers here but thought I’d say that if you email Crosman they will send you the factory tuning values and some extra spec. stuff. I think it was Beth at Crosman who answered my email. But this is an FYI.
    I know how you are missing your sweet spot tune. I had a Marauder .25 and I could cut cards in half, (at 20 yd), and hit tic tacs off of golf T’s at 50 yards. I screwed something up and sent it in and they gave me a whole new rifle that didn’t come close to the old one’s performance. Nice to get a new gun for free but I sure miss that other one.

    **Wound up finally buying a new Green Mountain barrel and I got 98% of the old gun back.

    Best of luck

    KP

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