Wildcat tuning

Forums PCP Airguns Wildcat tuning

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    kamora187
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    Hi guys,
    Recently picked up a new Wildcat .25 and am finding very little info on tuning. Does anyone know if there are any videos or pictures of the tune process, I have spent a ton of time tuning and modding Mrods but this is my first FX gun and do not want to mess with it until I have a better idea of the process. I know most say “they don’t require any tuning” but mine has an issue with poi shift, I will have 5 or 6 shots one holing around 1/2″ or less at 50 yds then the next few shots will group 1″ away then back to the original poi and it fluctuates every fill but is not 100% consistent as it just jumps around, these are not fliers there will be several pellets grouping but at a different poi. 3 Scopes tried (Hawk, Aeon, UTG), several different pellets and the same thing so I think something is up with it.. Has anyone else seen similar? BTW,  I have checked the string and over 40 shots had a 20fps spread which is not mind blowing but also does not seem terrible. I guess I am just having a hard time pin pointing why my mrod with the same scopes will out shoot my fancy new FX and hope I can get some help to turn that around  :)

    Any info would be greatly appreciated

    Thanks,
    Travis

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    Mr.Gadgets
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    Has anyone else seen similar? BTW,  I have checked the string and over 40 shots had a 20fps spread which is not mind blowing but also does not seem terrible.

    
Travis,
    Sorry to say, but yes.  I have a 3 month old .22 Wildcat that’s doing the exact same thing.   4 or 5 shots on top of each other, then the next 4 or 5 are grouping somewhere else or all over.  Two different scopes, same results.  I did notice that it started grouping 1 1/4″ high at 50 yard, so the next shot I put the crony on it, 1002 fps. Next shots, back to normal.  It normally shoots at about 875 average.  I was thinking of having it tuned by one of the guys on this forum, but I was reminded that would void the warranty.  Don’t know what to do at this point.

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    hsnmz
    Participant
    Member

    kamora187Hi guys,
    Recently picked up a new Wildcat .25 and am finding very little info on tuning. Does anyone know if there are any videos or pictures of the tune process, I have spent a ton of time tuning and modding Mrods but this is my first FX gun and do not want to mess with it until I have a better idea of the process. I know most say “they don’t require any tuning” but mine has an issue with poi shift, I will have 5 or 6 shots one holing around 1/2″ or less at 50 yds then the next few shots will group 1″ away then back to the original poi and it fluctuates every fill but is not 100% consistent as it just jumps around, these are not fliers there will be several pellets grouping but at a different poi. 3 Scopes tried (Hawk, Aeon, UTG), several different pellets and the same thing so I think something is up with it.. Has anyone else seen similar? BTW,  I have checked the string and over 40 shots had a 20fps spread which is not mind blowing but also does not seem terrible. I guess I am just having a hard time pin pointing why my mrod with the same scopes will out shoot my fancy new FX and hope I can get some help to turn that around  :)

    Any info would be greatly appreciated

    Thanks,
    Travis

    What fps is your gun shooting at. Have you cleaned the barrel. Can you share a picture of hammer spring adjuster at the back of the gun.

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    kamora187
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    Member

    Thanks for the replies! My string over 46 shots was avg 887 with 25.4jsb kings. So they think it is a barrel issue? interesting I guess if they have concerns about the barrel that might also explain why it is a bit on the slow side.. Will that cause any issues with warranty if I did that?

    Thanks,
    Travis

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    Deleted Account

    Did you try cleaning the barrel?
    Or washing and lubing the pellets?
    I have a .25 wildcat and I got tighter more consistent groups by washing and lubing the jsb pellets, both the kings and king heavies. 887 fps average seems to be in the ” sweet spot”. If your groups don’t improve by what I suggested you might want to tighten the hammer spring to increase the velocity just a little, 900 – 910 fps.

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    kamora187
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    Hey Eddie,
    I did clean the barrel, have not washed or lubed the pellets. I know that can make a difference but when I can fill both of my guns from the same tin and one shoots lights out and the others group moves around it would seem more gun related but I will give it a go though. The big problem about the hammer spring is that there are zero instructions for it and I am not familiar with FX guns enough to start messing around without knowing what I am doing. In the initial post I was checking to see if anyone had links to pics vids of the hammer spring adjust process, as pics are generally very helpful when working on new equipment.

    Thank you FE!

    Travis

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    hsnmz
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    I asked for a pic of hammer spring adjuster to see its current setting, i may be able to suggest something.

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    kamora187
    Participant
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    Sorry hsnmz, missed that you were asking for that. Is this the pic you want?
    Thanks,
    Travis

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    Dartagnan
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    Member

    Strangely, sometimes cleaning the barrel may lead to an opposite reaction.  Johan from FX says that cleaning the barrel can lead to small POI shift for the first 100+ shots and get the barrel out to 800+ pellets.  This is my first FX air gun so of course I will go by his recommendation.  Now here’s the strange thing Johan mentioned. Try releasing the screws in the picture (below) then tighten them. I had my gun on my lap when I did this.  Now, I found that recommendation sorta odd.  But again, this is my first FX air gun….  After loosening the screws, I gave it a slight wiggle to confirm it was loose around the air tube. NOTE: DO NOT COCK THE GUN WHILE THESE BOLTS ARE LOOSE.   Then re-tightened the screw (evenly) and torqued it down equally.  Soon after this my POI shift disappeared.  Scratching my head, I asked myself, “WTHek just happened?” But it worked!  Give it try!  You’re not tearing your gun apart.  Just loosening bolts and re-tighten. BTW I clean and lube my pellets and haven’t cleaned my barrel since 8 tins ago. Hope this will help.

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    kamora187
    Participant
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    Hey Dartagnan,
     Ensuring a few screws are snugged properly seems pretty simple and innocent, lets see.

    Thanks,
    Travis

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    hsnmz
    Participant
    Member

    That can be an issue as those screws are holding the scope rail. Also the pic of hammer adjustment screw shows that you have plenty of margin available for adjustment. Wildcats are mostly shooting around 880-890 fps. But what I have observed is that jsb pellets fly better at around 910 fps. Try increasing the power a little bit.

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    kamora187
    Participant
    Member

    Thanks hsnmz, is there a set screw or anything or do you just turn clockwise to increase? There are no directions that I have found for that, so I need to ask. ;)

    Thanks,
    Travis

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    hsnmz
    Participant
    Member

    Just turn clockwise to increase. But be careful that it is not locked with a locktite.

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    steppenwulf
    Participant
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    YES many of the hammer screws are locktited in. the screw is very weak and can bend easily. put some heat on the screw to break the glue before turning it.
     

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    Dartagnan
    Participant
    Member

    “kris”Dartagnan, what was the cylinder pressure when you tightened up the clamp screws? and what order?

    
Kris, it’s was at 220 bar (It was ready to shoot). There was no particular order when I tightened the bolts. I just made sure they were torqued evenly to 20lbs using my wheeler torque wrench.

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    kamora187
    Participant
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    Hey guys,
    There was only about 1.5 rotations available and it did not impact fps at all on the chronograph. fyi..

    Thanks,
    Travis

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    hsnmz
    Participant
    Member

    Did you try turning it out. Do small adjustments i.e. 1/8th of a turn.

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    kamora187
    Participant
    Member

    I will mess with it to see if I can find a sweet spot..
    Thanks!

    Travis

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    DaveF
    Participant
    Member

    I had a somewhat similar problem and solution on my 25 cal Cricket.
    I was told it had something to do with the aluminum air tube expansion and contraction with the change in internal pressure. I was instructed to do a similar loosening and tightening of clamp screws.
    Only thing different was the clamp screws were accutually tightening the clamp around the air tube.

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    kamora187
    Participant
    Member

    Thanks Dave,
    Lets see what happens, fingers are crossed :)

    Travis

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