FX Wildcat .22

Do not shoot FX air rifles below 100bar. 
I'm not sure if it is mentioned anywhere. There have been many posts over the years of people who have run into trouble shooting their FX's below 100. If you have a chronograph, shoot a string until your fps starts to drop off. If you do not have a chronograph, start shooting at the farthest distance you can 50-100yds. Shoot until your shots start to consistently drop, or you get close to 100 bar. When either one of those happens, that's when you stop (basically). 
I shoot my .25 WC from 223 to 143bar which yields approx. 40 consistent (2.15sd) shots. It seems to be the most consistent in this range. I can shoot beyond that, but just choose not to. A .22 shooting the same pressure range should get more shots, I'd guess ~60?. 
Hope that helps. 
Tom

I shoot mine from 230 bar down to 120 bar and stop there. I don't see any drop off at 120 bar bar but I suspect if I went below I would. 

There was another thread that stated that the regulator is set to 140 bar. I am still trying to figure out if it is ok to fill above 230 bar. A demo video from AOA has them filling to 250 bar even though the gun is marked for 230. I have pushed as far as 240 but that's it.

I would not push the max. Just fill to 230 bar and no more, be safe

This what happens when overfill,



FX Ranchero, air tube blow off the action hit the drywall, bent the barrel, damage the LDC, damage the gauge, stock shattered, rear of air tube threads expanded, lucky for the guy had a cut on his cheek.

Ouch!

Maximum fill pressure is 230 bar as printed on the right sire of the Wildcat receiver.

You convinced me. 230 bar from now on. Just out of curiosity, any idea of the pressure when it blew? Geez!

Additional, (and mind you I have only just bought my first pcp) why do the guns not just have a burst disk to prevent something like this?

My .25 Wildcat falls off the regulator right at 140.

"sniperlabyo"This what happens when overfill,



FX Ranchero, air tube blow off the action hit the drywall, bent the barrel, damage the LDC, damage the gauge, stock shattered, rear of air tube threads expanded, lucky for the guy had a cut on his cheek.

Click to expand...

WOW

I fill my .22 to 200-210 bar (all that my Benji hand pump can do) and shoot it down to 110 bar, where it drops off in fps. About 55 shots, but I usually pump it up again after 6 mags (48 shots).

I really need to get a chrony. I am just shooting to 140 bar b/c that is what I am under the impression that the regulator is set to. If it is really set to 110 before it drops of that would be awesome.

Tube that blew was an older 200b Max fill,

was near 4500psi when it blew the tube.

Aren't these air tubes tested at 3 times the pressure

My .22 Wildcat falls off the reg at 140 BAR as well.

I found out (the airgun started to open up the groups big time, after cleaning no improvement whatsoever) that the brass hammer spring tensioning screw at the back is very loose. It had unwindened itself all the way(!), so I had only 10 Joules (7 fpe) worth of energy coming out of the gun through the chrony...
I screwed it back in till it could not go further but the pellet velocity was too high, (290m/s and no hole in hole grouping) so I adjusted it to get the best grouping, which turned out for JSB Heavies (18 grain) 270 m/s and for the regular JSBs (16 grain) 255-260m/s.

Here's the problem: the brass setscrew is so loose, that it unwinds itself about 3 to 5 degrees after every shot and subsequent cocking of the hammer. (I put a marking stripe on it so I could verify it stays at the same setting I put it, well, unfortunately it does not.)

Is there a fix for this? I think locktite is not a good solution, as I need to be able to change the setting which is 2 and a quarter turn when changing from one pellet type to the other.

Who knows what to do?
Thanks in advance for your time! (and Ernest if you read this: thank you very much for all your shared expertise in your instructional videos, very informative and extremely helpful!)

"sniperlabyo"This what happens when overfill,



FX Ranchero, air tube blow off the action hit the drywall, bent the barrel, damage the LDC, damage the gauge, stock shattered, rear of air tube threads expanded, lucky for the guy had a cut on his cheek.

Click to expand...

WOW! That gentleman got lucky! 

MartinT: I wouldn't reccomend locktite either. Maybe some Teflon tape? If that didn't work I would look to the manufacturer for a solution. 

This is a good photo , lots of these guys do not realize this; could happen, This should be a sticky. These air guns are just as dangerous as powder guns and maybe even more dangerous. Thanks for this picture. Opened my eyes and I have been shooting guns for 55 years. Be careful..........