Tuning Help Please Wildcat jammed up bad

I believe you have to remove the cheek piece, I think it has two Allens on top. Then on top the breech right in front of the mag you will have two different sized Allens, loosen both a couple turns and pull the barrel. Pull the bolt back and remove mag. I had a maverick, this process had to be done once on it for the same reason. I used my mag to set how far I pushed my barrel in, try to set it close to the same force to pull the mag before the jam. 
 
Hi Markc_66,

If you’re still having difficulties on Monday please call our customer service or technician department and we will assist you in finding a solution for your Wildcat. 


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FX Airguns USA

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No need to air down. Please point barrel in safe direction, safety is on, gun un cocked, and stay away from the trigger.



under the cheek rest are two grub screws forward of the mag slot. Completely remove those, then pull barrel out. While pulling the barrel out remove your magazine from the mag slot.

pop pellets out with an appropriate sized wooden dowel or composite/coated one piece cleaning rod, with the brass end of the rod protected with tape.

when replacing the barrel the brass transfer port end has an indexing/alignment notch. When you push the barrel in slowly, face the transfer port opening towards the bottom of the gun and when you come to a soft stop, apply soft pressure towards the mag slot and spin the barrel side to side till you feel the alignment notch catch in place, and the barrel move back more towards the mag slot like 1/4”. That means your barrel is now resting in place perfectly. If you look in the mag slot that notch will be visible and will be pointing down at 6:00, and a small bit of the brass will be stubbed out. That’s the part your magazine latches onto.

test fit an empty mag to make sure it slides in and out, if good tighten up the grub screws back on top to secure the barrel.



no need to go gorilla tight on those. Snug till it stops, then 1/4 turn more. Install cheek piece, and make notes to self on how to avoid jamming a pellet ever again.
 
Version #2-

much easier than above. All safety points remain the same.

Unthread the barrel shroud, and slide it off. At the muzzle end you will see a liner lock with hex flats. Remove with a 10mm open end wrench.

loosen the two grub screws holding the barrel under the cheek rest. No need to remove, just loosen. Take a sharpie and scribe an index/reference line on top of the protruding liner so you can replace it back exactly how it was set by the factory.

Take a plier with tape wrapped around the pliers teeth and grab onto your barrel liner out front protruding out. With one hand on that plier, take the other hand and hold onto the outer barrel to keep that from pulling out, you just want the liner pulled off.

And in case you forgot to scribe that index line on your liner- an fx STX liner has one end with no groove on it, and the other end has a groove, sorta like an o ring groove bit not as deep. That end with the groove is the rear end of the liner and always goes back in first and heads towards the mag slot. Always on the STX liners.

as you pull the liner out spin it back and forth to keep the inner o rings that center the liner within the barrel in place on the liner. Depending on length of liner, you could have as few as two o rings on the compact edition to as many as four on the sniper edition. Check with a flashlight that none of these o rings came off and are inside the barrel tube.

remove pellets as described above. Reinstallation of the liner and barrel shroud is the reverse of the removal procedure just described, with a key note on tightening up that liner lock- tighten till it comes to a hard stop by hand, then with your 10mm wrench, one strong 1/4 to 3/8 turn to tighten. You DO NOT ever want to over tighten the liner lock as it will damage your liner.

but you don’t want it wimpy loose neither as it can accidentally unthread with the barrel shroud and that’s a different set of problems right there you don’t want to have 
 
If you fired, cocked back, and decocked without removing the mag, you will push the cocking latch forward which would then load the barrel with a single pellet.

if you decided an hour later to cock and load, then now uou just double loaded. 
when decocking it’s a good and safe practice to first remove the mag before pushing the cocking latch back forward.

it would be great if fx would incorporate an anti double load feature in all newer versions of their platforms moving forward. 
 
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If you can't remove the mag, then the last pellet is obviously jammed between the mag and the breech face. My guess, you realized the double load and let off on the forward clambering of the second pellet, leaving it jammed, but with the probe now unable to push it forward, because the mag had closed. I'm no expert on this rifle, but in general, once starting to chamber a pellet, keep pushing forward until the lever is fully closed. You can safely shoot out 2 or 3 pellets, but if you stop midway, this kind of jam can result. But as advised, once the barrel is off, you will probably resolve it easily.
 
As FX USA has chimmed in on this thread I hope they also recognize that it could be a very good idea to install a “ double loading prevention system” into their airguns as several other brands have been able to do as well. Please FX this can’t be rocket science
Let me 3rd this post and the other post regarding a "double loading prevention system". Its far and away my biggest problem with my WC-BT!!! I've come close to selling the gun because of it. It is a big safety issue FX.
 
Let me 3rd this post and the other post regarding a "double loading prevention system". Its far and away my biggest problem with my WC-BT!!! I've come close to selling the gun because of it. It is a big safety issue FX.
I'm glad they don't have such a system. The mechanics required are complex and prone to failure. The FX magazine system, along with others like Benjamin Marauder, etc. is simple and works. I consider double loading possibility a PCP quirk that you have to learn and train yourself around, and I find it helpful to stick to a shooting protocol like many shooters do (I think I heard user Orion mention it very specifically once). Do not load the chamber until right before you shoot. The gun should be empty chamber, decocked as a default position. If you load and your shooting opportunity disappears (like when hunting), dump the shot into a safe backstop. Also don't put the magazine in and expect to walk around with the bolt open. First time you tip the gun down, the bolt will fall with gravity and give you an instant double feed.

There are a couple simple additions I would welcome, though. The first being a light magnet or detent that holds the bolt to the rear even if you point the gun down when reloading for example. And the second would be a magazine cut-off, like a button on the magazine you could press that would stop the wheel from turning. This would be helpful for loading a magazine into the gun while retaining an empty chamber, and also dealing with misc issues where you don't want the mag advancing. This should be a lot simpler to implement than a gun-side anti-double feed.

Double feeds almost always shoot out fine, with the exception of the very annoying last shot scenario posted by the OP.