low shots per fill FX wildcat

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Rootmechanic

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Jan 14, 2018
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Just for starters, I want to say that I just love this website. I've made a visit about every 6 hours since I joined a few days ago. Anyway, I have my new wildcat .22 in hand. I have an Air venturi tank. All seems well. I'm a little concerned that my shots per fill is not up to par, however. The guys I bought it from (Utah Airguns) were super cool and nice but told me that I should not let it get down below 150 Bar. The only trouble is that I only get about 30 shots from 230 bar to 150 bar. I understand that this rifle should get about 60 shots per fill. Should I run the gun down below the 150 Bar? He said that it wasn't good on it to shoot at lower air pressures. I don't have a chronograph or else I would just test my shots to see when things are slowing down. If you have experience with this rifle and know the answer to my questions, it would be appreciated. 

(It's a tack driver though. I was stacking pellets on top of each other at 30 yards. Feels good compared to my previous springer.)
 
Root, one thing to consider. If they tuned it for you to shoot the heavier pellet, that means they "turned it up" a bit. That always comes at the cost of fewer shots because it takes more air volume to get that bigger pellet moving at the required speed.

So unless you just WANT to shoot that heavier pellet, you can tune it back down just a little and shoot the lighter 13's. That will result in higher shot count. But, if you don't turn it down a bit, the lighter pellets will be going way too fast. Likely beyond the pellet's ability to stabilize. So it will be less accurate.

So it is sort of a trade off. Everyone wants to shoot the heavy pellets real fast. Well, that takes air. So if you don't just NEED the heavy, shoot the next size down and back off on the hammer spring a turn or two.

But, best advice, GET A CHRONO before you do anything of that. You need to know where you are shooting. And, if you change the tune, count the turns of the hammer spring. Record it so you don't forget. If you back it off 2 turns and get 900 fps with the lighter pellets, you can put it back if you so desire to shoot the heavies again. But you need the chrono to prove what you think is happening. 

Just my 2 cents

Crusher
 
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"crusher75060"Root, one thing to consider. If they tuned it for you to shoot the heavier pellet, that means they "turned it up" a bit. That always comes at the cost of fewer shots because it takes more air volume to get that bigger pellet moving at the required speed.
So unless you just WANT to shoot that heavier pellet, you can tune it back down just a little and shoot the lighter 13's. That will result in higher shot count. But, if you don't turn it down a bit, the lighter pellets will be going way too fast. Likely beyond the pellet's ability to stabilize. So it will be less accurate.
So it is sort of a trade off. Everyone wants to shoot the heavy pellets real fast. Well, that takes air. So if you don't just NEED the heavy, shoot the next size down and back off on the hammer spring a turn or two.
But, best advice, GET A CHRONO before you do anything of that. You need to know where you are shooting. And, if you change the tune, count the turns of the hammer spring. Record it so you don't forget. If you back it off 2 turns and get 900 fps with the lighter pellets, you can put it back if you so desire to shoot the heavies again. But you need the chrono to prove what you think is happening. 
Just my 2 cents
Crusher
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Thanks. I’ll have to get a chronograph. Very good advice. Thanks everyone who has helped.
 
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Crusher is on it. Chrono is a must have, and a fairly cheap investment considering what you've already spent.

FWI, my WC .25 cal gets 50 shots with the 25gr JSB's. Shooting 875fps. from 230-140 bar. All things being equal, you should get around 70+. But like crusher says, maybe they tuned it for heavy pellets. Although I don't know why they should have, unless you requested that. That would not be the factory setting.

you will not regret having a chrono for all future guns in this hobby.

Have fun
Scott
 
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I don't know the answer to this but I would've guess the regulator to be set around 130-135, 140 the most on a 22cal WC. Root, In the mean time of waiting a on chrony I'd shoot it out to 50yds and shoot it down past 150bar. I think your short some on shot count because you have more air left in the cylinder, that can be used. Shooting out to 50 is far enough that you'll see a definite point of impact start to fall when your below the set point of the regulator. When the POI starts to fall look at your gauge and see what's it's showing. Hopefully it'll be well below 150bar. At a closer range like 25 or 30yds that POI drop wont be as defined. If your normal shooting distance is that close then crowding the regulator set point should be ok. 
Jimmy
 
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Pumped it up to 230 bar shot 41 pellets it came down to 150 bar I kept shooting all the way the 64 pellets it was at approx. 102 bar the last 4 pellets were an inch low at 33 yards I figured the FPS was diving I was shooting some Crossman 14.1 that I had just to run through the gun and get used to the trigger which is very sensitive for sure.
 
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Here's my update: It was 49F with winds at about 15mph 90 degrees. I shot at 50 yards. I didn't have a chronograph and so I just waited for my shots to arrive 1 inch low. I shot 48 (6 magazines) before my pellets began to drop at least one inch from the very consistent group that I had. My air gauge read 110 Bar. I was shooting the JSB match Diabolo Exact Jumbo heavy at 18.13gr (.22). I went in the house and filled my reservoir to 230 Bar (as read on my rifle gauge), which corresponded with 3200 psi on my tank (converted to Bar this is 220). This told me that my gauge on my rifle is 10 bar too high.

What do you all think? Should I make any adjustments or am I close enough to leave it alone? My next idea is to fill my rifle to 240 Bar and shoot it down to 110 and see how many shots I can get. I still feel that I am losing air quicker than I expected, but perhaps not. Any further thoughts guys?
 
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