Damn you answer fast haha
With a starting pressure of 230 (maximum SWP)
And how accurate are the markings on the reg? Is your reg pressure marking at exactly 140bar?
With a starting pressure of 230 (maximum SWP)
And how accurate are the markings on the reg? Is your reg pressure marking at exactly 140bar?
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Hehe, lunch time down here. 
OK, I'll count starting at 230 and will tell you.
I have asked Huub from Huma to set it to 140 for me. The index is just a little bit over the 140 marking, approx. 1/25"
OK, I'll count starting at 230 and will tell you.
I have asked Huub from Huma to set it to 140 for me. The index is just a little bit over the 140 marking, approx. 1/25"
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G
Guest
Guest
There is a good way of checking your most excellent Huma regulator pressure on the Wildcats by simply screwing an air gauge into the air bleeder hole.
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How did you determine which one is accurate? I have been reading the WIKA is accurate. Inquiring minds want to know!
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Well with encouragement from Chuck we started a new attack on the wayward Wildcat of mine we spent almost 10 hours on the phone plus follow up calls. And can now say we have my Wildcat shooting great. I ran a 64 shot string this morning from a single air charge od 250 bar. Reg set to about 140 bar I say that because it was not set from AoA where I bought it in fact it was way off the 140 bar I requested. Chuck is loaning me a gauge to verify my regulator pressure, After getting regulator install instructions and how get it close from Huub at Huma regulators. I was able to get to the real fight which is getting the Wildcat adjusted correctly and let me tell you that is no easy task.
After oh about 35, try's and Chuck's input we finally got it. The major problem was the the probe air transfer hole would not stay lined up over the transfer port. We found out that with just 1/32" of mis alinement you drop 200 fps off the velocity. Using a lot of highly accurate machines like lathes, CNC mills and cnc lathe I was able to bring the multitude tolorences to a manageable level and a procedure that allowed us to get my gun shooting very near to chucks. I now have a great big grin on my face this cold windy day here at 6808 ft above sea level. While the old pro basks in the sun in Florida. I will not go into all of this ordeal because most of you don't have personal cnc machines to alter or make parts that makes this air rifle much more user friendly. These guns are not average end user friendly, if you want to work on your own gun. With a mentor like Chuck this could have ended very differently. I will not argue whether I can get 64 shots at the power level from a single 250 bar charge are not. I know what I did with it today out in the weather here and that is what I know to be true. With that said now I am happy with my tune and the results with Chucks help.
keep you air dry
CH
64 shot. String JSB 25.39 gr 250bar air charge temp 29 deg, wind 15-20 mph alt 6808ft
Av 922.7 fts
high 937
low. 903
SD 9.1
ES 32
After oh about 35, try's and Chuck's input we finally got it. The major problem was the the probe air transfer hole would not stay lined up over the transfer port. We found out that with just 1/32" of mis alinement you drop 200 fps off the velocity. Using a lot of highly accurate machines like lathes, CNC mills and cnc lathe I was able to bring the multitude tolorences to a manageable level and a procedure that allowed us to get my gun shooting very near to chucks. I now have a great big grin on my face this cold windy day here at 6808 ft above sea level. While the old pro basks in the sun in Florida. I will not go into all of this ordeal because most of you don't have personal cnc machines to alter or make parts that makes this air rifle much more user friendly. These guns are not average end user friendly, if you want to work on your own gun. With a mentor like Chuck this could have ended very differently. I will not argue whether I can get 64 shots at the power level from a single 250 bar charge are not. I know what I did with it today out in the weather here and that is what I know to be true. With that said now I am happy with my tune and the results with Chucks help.
keep you air dry
CH
64 shot. String JSB 25.39 gr 250bar air charge temp 29 deg, wind 15-20 mph alt 6808ft
Av 922.7 fts
high 937
low. 903
SD 9.1
ES 32
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Do some, or all, of the difficulties, with end user friendliness, come from the mechanical extensions for the trigger and lever action? Or are these unrelated to the issues? I'm just wondering if bullpups are inherently more complicated
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Yes, no, they definitely are related, Bullpups need not be overly or inherently, complicated. Especially the Wildcat, as a designed specific as a bull pup. Due to circumstances of this forum, I can not do an Engineering design review of this product. We used to do design reviews on projrcts at HP where I was a senior design engineer before retiring. A term we used on projects that was well designed and was reliable and field serviceable was called a robust design, this is not a robust design. Chuck knows what we went through to get a procedure and parts corrected to make these guns his and mine, field serviceable by the owners.
Keep your air dry.
CH
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it sounds like you are hunting your tail. It is because you have to get as big as possible manometer,
i am using 'glycerin filled pressure gauge 3500psi' with different adaptors for all different pcps.
small diameter one are not good enough/ accurate. and no no need to go digital. once setup, you can just pin plug the hole.
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Tomboy
If it has several m3 grub screws on rounded surfaces, or in blind holes, lose slidable linkage, 11mm dove tail scope rails, light fragile presure gauges, steel hardened screws loctited/chemical welded. Then no it is not. Things held together with tiny m3 grub screws/hardware are not robust.
CH
If it has several m3 grub screws on rounded surfaces, or in blind holes, lose slidable linkage, 11mm dove tail scope rails, light fragile presure gauges, steel hardened screws loctited/chemical welded. Then no it is not. Things held together with tiny m3 grub screws/hardware are not robust.
CH
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G
Guest
Guest
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Hi Chuck, The real Wildcat's Sherlock
As you mention int the post about delrin washer on the valve pin assembly (i believe that is A10) .. can i ask :
1. What the purpose of that parts?
2. What will happen if its not assembled together with valve assembly?
I just bought the used .22 wildcat FAC, i see no such part at my valve pin assembly..
thanks
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That part is only available on fac versions as drawings says, and its purpose is to keep the valve spring aligned and therefore the valve when sliding over the valve housing. I wouldn't be worried if it's not from factory if you can't see any troubles with your gun. Sometimes fx change little things on their guns and they don't change drawings, maybe that's one of them (Royales have a lot of that examples on their schematics)
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The valve housing has a little gap where the valve spring can fit in so maybe fx has found that that part is not 100% necessary to align them, extremly hard to belive they forgot a part in it so as i said, as long as it behave as it should i wouldn't be concerned
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