FX Wildcat 25 MKII - Huma regulator is here!!

Nice! Hope with some tuning it gives your gun a significant boost in consistency and accuracy ?

Good deal Bob, excited to hear about the install and results.. 
the regulator package has; O..177. | O..22 |O. 25... nothing was selected. Does this mean that regulator will work with all three calibers?
just couriuos. Tks

Good deal Bob. Is that one of the Huma's that AoA sells for the Wildcat? I was thinking about putting one in mine, but the gun was still under warranty so I just sent it off to FXUSA and found out the problem I was having wasn't the regulator. I was getting readings as low as 783 and as high as 873. I threw out the 783 and an 822 because I thought that the chronograph must have read it wrong but still ended up with an es of 41 and sd of 10. Had Ernest look at it and he said it was part # A-9 which is an oring on the valvepin causing the erratic velocities ... he also leak tested, inspected and tuned it. The strange thing was that I hadn't shot the WC in over a month and never noticed any kind of air leak showing on the gage. Haven't made any pics yet but I'm getting half inch groups at 70 yards!!!!!!!!!!!!!!!!!!!!!!!!!!

If this regulator ever goes bad on me, I'll sure replace it with a Huma though.

(copied and pasted from another topic)
Hey Bob you can “resize” the hole in the hammer spring adjustment nut so that you can get it out…just use a micro torch to heat up the thin metal at the center where the Allen key goes until it is red hot, then use a ball peen hammer to pound the next size Allen key in the hole, then once you do that take a few drops of cold water to quench the nut with the Allen key in the hole and the metal will shrink tightly to the Allen key for a perfect fit. Now that your hammer spring nut has a new size Allen key hole you can remove the nut.Heating the nut up hot enough to do this should have loosened the loctite that was used on the threads…but if not just use your micro torch to heat it up and turn it out with your new size Allen key.

I have actually resized the hole in the hammer spring nuts in my Wildcat & Streamline. I recommend you order a new one to use as a jam nut against the one in the gun to prevent it from turning itself out from vibration…this is far better than using loctite or Vibra-Tite to keep the nut from moving. The part number is: “11541 Hammer spring adjuster HP”.Best regards,Chuck

p.s.: I recommend you use a dental pick and some Acetone or finger nail polish remover to clean all the burnt loctite residue out of your threads inside the breech and on the nut itself…you wouldn’t want a chunk of that crap to get caught up in your trigger sear or valve pin. This whole problem of using such a mickey mouse hammer spring nut is one more example of me loving my FX rifles and yet being exasperated by such “engineering as an afterthought”. A ninth grade school boy in his first month of machine shop could come up with a more robust design for a hammer spring nut!

Hey Bob, 
You may consider changing the air gauge on your air tank to a Wika gauge that reads up to 315 bar...so that with a Huma reg in your rifle and a Wika gauge on your air tank you will be able to fill your rifle up to 300 bar now instead of 230 bar. Both my Wildcat and my Streamline have been set up this way for quite some time with no problems whatsoever. The air tank o-rings aren't bothered in the least by the additional pressure. On one of my rifles I had to sand down the neck that the air gauge screws into slightly so the dust cover would seat all the way down...piece of cake. 
Best of luck with your new baby! Chuck
http://www.csgshop.com/product.php?id_product=248

Was eight and a half turns in the peak velocity? What happens when you turned it to nine and a half or 10 turns in?

Bob with my wild cat I experienced a strange phenomenon when I was experimenting with increasing velocity.. there was a point where my 34 greiner's became very inaccurate and unstable... But then when I increase the velocity up to 890 and finally just over 900 feet per second they stabilized and became extremely accurate again! So it seems like to me with that smooth twist Barrel in my Wildcat that there was a point where at low velocity in the low 800 they were very stable, but then became unstable at around 860 but then I became very stable and accurate again. Both the MK1 and MK2 shoot as accurately as laser beams at 900 feet per second in both my Wildcat and streamline!