Gotcha, if it gets to be too much I can take it off your hands sometime this week or next and see what I can do for ya. I normally tune my teams FX guns.I am in Palm City but work down in Jupiter. I agree it’s a lot of air to lose over the course of 2 magazines. Something just seems off and I know I’ll figure it out. I just feel like I’m playing ping pong with the settings. I’m not giving up
You know…one thing that I’ve always been curious about and wondered if it could possibly be affecting things is my valve adjuster makes contact with the barrel shroud at about 3 1/3 lines so I am unable to take my valve adjuster fully out to 4 likes. I’ve spoken to a few people on the industry who said this is normal and shouldn’t have an effect on anything for what I’m doing. I can confirm that the valve adjuster doesn’t really affect my fps until I get closer to 3 lines or so, but just something I’ve thought about.
Who ever told you it's normal is lying, i completely forgot about that.
spares.bagnallandkirkwood.co.uk Well, one of them was Patrick S at Palm Beach Airguns. And then he suggested I called Newman at Cape Fear Airguns who was heavily involved in FX (forgot his position) and they both told me that was normal and the compacts did that. There is a forum on here that also has dozens of people saying the same thing, so I assume it is normal. I can solve it with a piece of carbon fiber tubing but from what I understand it’s totally normal for the 500mm.Who ever told you it's normal is lying, i completely forgot about that.
Anytime i've tuned a compact m3 I have to loosen the shroud to increase the valve adjuster. Then tighen the shroud against the valve without moving the valve. But this is for higher power set ups.
You can try it and see if it helps.
You can get this piece to help remedy that issue.
FX Impact MK1, MK2, M3 & M4 Shroud Inlet Cone - 19925 - Bagnall and Kirkwood Airgun Spares
Tapered shroud inlet cone for the FX impact MK1, MK2, M3 & M4 air rifles.
Gotcha, in thay instance, yes it is normal. But they really should've gone with the same conical shape on the compact as they did with the 600mm/700mm.
Yes I agree they SHOULD have gone with the conical endcap. But I’be been told that’s normal and it’s unnecessary on the 500mm because if you are plan on hammering the snot out of the compact, you should just get a 600/700mm barrel. I may get back on the phone with them today and see if I can get some additional information and advice on things. Even in AEAC master tuning guide video (forgot his name) he states the valve hits the shroud and it’s normal and just to tune from 1/4 turn off the shroud. I guess I need to figure out exactly how much speed to take off with the hammer and how much speed to take off with the valve. I’m guessing 30ish fps from hammer and another 30ish from the valve for peak efficiency and performance. Take the gun to 910-915 fps, drop back on hammer to 880ish, pull in the valve adjuster to 850-860 fps (which is where I’ve heard the hades are happy). From what I’m understanding this is ideal??
I figured out a lot of good information over the last few days and have been very successful tuning. The biggest piece of the puzzle that I was missing was learning about harmonics.
Hell yeah bud! Good on you for figuring it out! Funny you say that about the speed as 95% of 900fps puts you at 855fps! Enjoy your gun and those groups are great!
