Edgun Leshiy .25cal super tune
Ive spent a bit of time on my new Leshiy this week and have refined it to my liking..
While the 350mm barrels and shroud extensions are available for higher velocities I wanted to keep mine compact and light as it was designed to be.. this comes with the compromise of the shorter 250mm barrel which produces lower velocities or less shot count.
This is the typical performance you can expect from a .25cal Leshiy with 25.4gr kings:
250mm barrel: 12-13 shots at 760fps
350mm barrel kit: 12-13 shots at 810fps
Thats not bad but I devised a plan to get a little more from mine without the long extension and also make it quieter than the std Leshiy…
25.4gr JSB kings get 18 shots at 800fps 36ftlbs!
Want more speed? 6 shots at 925fps 48lbs
Want more shots? 25 shots at 700fps
Want 12ftlbs? 39 shots at 460fps 11.9fps
Want a better trigger with a predictable break? … Yea me too… give me some more time on that one…
The same tune in a .22 or .177cal will be just as impressive..
All this performance in this short little setup..
I will explain the mods in a tuning video soon…
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Personally I use Autosol on a bore mop or bore snake but there are lots of other products out there like JB bore paste.
Polishing has more to do with keeping a barrel accurate for longer between cleans than it does making a barrel shoot better. The smoother bore helps prevent lead buildup which causes the accuracy decline.
Search Barrel polishing in the search box above and there is 15 pages of info for you guys to read.
Heres a good start.
http://www.talonairgun.com/forum/viewtopic.php?f=37&t=28036&hilit=Pol
That would of great interest to me too!
Yes! That’s a good idea, since you get such good results Wing.
Wingman, please tell us how you polish a barrel.
Dear Wingman,
I am in awe of your knowledge of PCP air rifles and ability to improve them to such high degree of accuracy and performance.
Alas, my knowledge, technical abilities and equipment have only enabled me to shoot my PCP rifles as they come, out of the box. Obviously, I do experiment with pellets and stick to the highest quality brands and models, but my PCP’s do not meet your super performance. But they certainly are “not bad” either and should have the potential to come somewhere in the neighborhood of your masterpieces, if I knew what to do, have the proper skills and equipment.
Some of my sporting pistols and hunting rifles are tuned by professionals or tailor made for me by the best in the trade, enabling the sort of top performance of your PCP’s. Naturally the costs of these master pieces are inevitably corespondent…
But over time, I hope to gain the knowledge, experience and equipment to improve my PCP’s to higher standards as well.
I will let you know how I fare in Spain with my Leshiy.
Kind regards,
Hans
I am unfamiliar with LW barrels, are they like CZ and need a good polish? I know my .22 CZ barrel got superb results with a polished barrel but I also heard some manufacturers using LW have them lightly polished from the factory? How about the Leshiy barrels?
I posted many settings “above”..
My personal .25cal Leshiy is set to 108bar on the prototype Huma regulator and plenum, no valve spring spacer, 800fps with 25.4gr JSB kings and a lightly choked 310mm hammer forged BSA barrel with custom suppressor internals.
I have machined the barrels chamber end with a deeper lead/chamber than Eds barrels to seat pellets more precisely and evenly as it requires almost no force to seat a pellet squarely to the rifling lands, this eliminates the flyers cause by pushing a pellet into the rifling unevenly and deforming the pellets head unevenly. The bore has been highly polished with autosol compound and only requires dry patch cleaning about every 350 pellets.
It also has a hammer mod to reduce the hammer Hydraulicing in the housing and a trigger mod to rid it of the long spongy single stage trigger. Like all my other PCPs it will stack pellets at 50 yards and shoot inside MOA at 100 yards all day long.
A PCP has no place in my collection if it couldn’t do this.
Dear Wingman,
Was this impressive results achieved with the settings you posted above, or with you “Super tune”
Kind regards,
Hans
another hour at the new feed lot
Dear Wingman, Cricket and others,
One question on the “spacer.” Mine came with one I believe (date of manufacture December 2016). The spacer is the white little cylinder, isn’t it? Out of the box it was very efficient (with the OEM regulator). But the pellet speed was only 195 m/s (sorry I grew up with the metrick system). 110 BAR was written on the OEM regulator and accuracy was quite good!
But in Edward’s YouTube videos he always shot around 222-3 m/s. So I initially tried to mach that. Also because at 195 m/s the balistic trajectory becomes very parabolic. But the Edgun regulator is difficult to adjust for a beginner like me.
I also have to mention that during my trails the temperature was below zero. And I have not compared the accuracy of the different pellet speeds.
But I have a holiday break, which I am spending in Spain at friends who life on a large hunting estate. I will post more results including accuracy, so we can add that to the data collection. I also hope to show how it performs on the local varmint…
Kind regards,
Hans
Correct, it does. The spacer is not needed at 110bar but it was there for the above chrono test so I mentioned it. It should get the same results without it with 1 click less HST.
Wingman, by the addition of a spacer you increased the valve spring tention. Huma reg itself also increases that tention. Am I right?
:tag: Hans! I too have the .25 250mm barrel and will try the Wingman special of 110 bar to try and get around 27 shots. I don’t have that valve spring spacer though
Not bad Hans but it will do a lot better if you run the reg at 110 bar and back your speed off to 213mps (700fps). You will get 27 shots from a 250bar fill.
here’s the results of a tune for the 250mm .25cal barrel with the Huma reg set to110Bar, 700fps with 25.4gr kings, 27 shots
Valve fitted with hammer spring spacer. 250 bar fills
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Dear Wingman thanks for the good advice.
But how would I go about installing a 310 mm barrel .25 in my Leshiy since that combination has proven to combine power so well with “stamina” (when using the Huma regulator).
Finally, you mentioned something about widening the beginning of the barrel to place the pellets more precisely.
If I had some measurements or drawings, I could ask my gunsmith to perform this alteration. He is not an airgun specialist by any means, but is one of the few “Meister Büchsenmacher’s (master gunsmith)” in the Netherlands well experienced with working on barrels.