Hello I'm thinking of putting in a huma 12 foot pound regulator will it work with .25 cal also what should it be set at?
Tuning Leshiy classic huma 12 fpe
- Thread starter RBD2
- Start date
I did a little playing around with this. I'll check and see if the index card I wrote everything down on is sitting next to my pellet trap.
What length barrel will you be using?
What pellet?
What is you speed goal with that pellet?
What length barrel will you be using?
What pellet?
What is you speed goal with that pellet?
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Using .25 250 mm barrel I also have a .22 250 mm but I like .25 batter will be using on pests under 40 yards pellet is use usually are .25 hades or the .25 kings. Looking for about 12 to 14 fpe
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I have similar goals, albeit nowhere near 40 yards. Unfortunately that Leshiy started to leak and I've been procrastinating on removing the paracord to diagnose further.
Rabbits are moving back into the yard so it's time to get back to it. I'll let you know what I find out.
Do you have the regular Huma now? Have you tried turning it and the HST down and seeing how slow you can go?
I know with 22/250 I have had the HST way under sprung for the reg setting and had it shooting really slow. The energy spread went up but accuracy still seemed good. Just have to pay attention to not taking that extra shot off the reg.
Rabbits are moving back into the yard so it's time to get back to it. I'll let you know what I find out.
Do you have the regular Huma now? Have you tried turning it and the HST down and seeing how slow you can go?
I know with 22/250 I have had the HST way under sprung for the reg setting and had it shooting really slow. The energy spread went up but accuracy still seemed good. Just have to pay attention to not taking that extra shot off the reg.
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Yeah I have the regular huma now I had it tuned for about 12 and it was accurate but I was having regulator fluctuations I think the gasket isn't sealing I'm waiting on o ring set from huma bit seen.edgun west has the 12 foot pound huma and some people say it's awesome for lower power less air wasting
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You could try the Huma 12 fpe with the standard hammer spring first, Wingman liked that setup, took a screenshot, the video is made private
https://youtu.be/L2nGqGyImkw
https://youtu.be/L2nGqGyImkw
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You could try the Huma 12 fpe with the standard hammer spring first, Wingman liked that setup, took a screenshot, the video is made private
https://youtu.be/L2nGqGyImkw
Towle is there any information about what sort of power/efficiency was made without the delrin spacer?
I'm not actually shooting for 12 FPE with mine. I guess I'll have to try both.
But interesting for sure. I know of two AGN posters who went back to the regular Huma but felt the sub-12 hammer spring was worth keeping installed for greater fine tuning.
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Can't remember if Wingman said anything about that, should have saved those videos
Yes I guess the sub hammer spring would work well with lower setting on a bigger plenum
When I had the sub 12 installed (.177 cal) I used the original hammer spring, reg at 115 bar, HST 19, that gave me 60 shots with JSB Heavy's at 761 fps, about 13 fpe
..but I missed the solid pling from the swingers so went back to the original Edgun reg
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I went back through some of the stuff I had saved and am still confused. With these charts he suggests the same shot counts with regulator settings of 110 and 100 bar respectively for 177 and 22. But doesn't specify which hammer spring or whether the delrin spacer was used. Maybe he's saying 110 bar is most efficient but if you want 12 FPE with 22 you should bump down to 100 bar?
Still, gives me some things to try. My interest isn't low power necessarily but the super quiet is intriguing.
Still, gives me some things to try. My interest isn't low power necessarily but the super quiet is intriguing.
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I would think the charts listed on Huma's site would be with the full kit installed but I don't know it for a fact
Normally that means getting the pellet up to speed early in the barrel, aka lower volume of higher pressure air
Normally that means getting the pellet up to speed early in the barrel, aka lower volume of higher pressure air
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Thank you for this. I have read about the concept of a "big sip of lower pressure air" vs "a small sip of higher pressure air" but don't recall it being in the context of sound.
Didn't Wingman show a spacer on his poppet in one of his sub-12 Leshiy videos?
Can I then assume this is the make the valve shut quicker? AKA a "smaller sip"?
I took a screen grab of a similar spacer from an Ernest Rowe video, although with the Edgun regulator and plenum, not the Huma sub-12.
Do you recall seeing a similar spacer in one of Wingman's videos?
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There is a limit to how low you can go with the valve opening and still have low spread in velocity, so a reduced plenum size at higher pressure would be a better way to put it - if you really want to go deep into this, ask member of this forum, nervoustrig for advice
No I don't think so, the spacer may have been a temporary fix to prevent the hammer from hit and damage the brass bushing around the hammer stem, later the face of the hammer was changed to prevent that
I think you will be better of reducing the plenum size with a sleeve
No I don't recall that, BTW found more screenshots for wingman's leshiy clasis super tune video showing his mod of installing a AFAIR 310mm barrel instead of the original 250mm one, designing a new moderator system, making it more silent than the original
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