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Leshiy 1 .25 – optimal speed with a 350mm barrel

Forums PCP Airguns PCP Airgun – Discussion Leshiy 1 .25 – optimal speed with a 350mm barrel

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    Pompkie
    Participant
    Member
    Poland
    Accuracy: 1

    Hi,

    What is the optimal speed for L1 with a 350mm barrel shooting JSB King pellets? I was thinking about 880FPS.

    Thanks!

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    Michael
    Keymaster
    Keymaster
    Accuracy: 7

    I guess it depends on what your goals are. Short range pest control, long range target shooting, power over precision, or shot count.

    I can't help you with the .25 but I have lots of experience with .22.  Since the L1 is so light I found it more pleasant (and accurate) to shoot at lower power.  I had mine tuned for 20 FPE. 250b fill, regulator 80b, JSB 18g, Ave 723 FPS, Ave 21 FPE, 38 shots.
     

    https://www.airgunnation.com/topic/show-off-your-leshiy-thread/page/2/?view=all#post-559269

    • This reply was modified 1 week ago by Michael.
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    Vetmx
    Participant
    Member
    United States
    Accuracy: 4

    That’s up to you. If you don’t mind your PCP feeling like a springer you can get some velocity out of a Leshiy. My dad currently has mine for some larger pest removal. Mine is a .22 shooting 18gr. I had to put my 350mm on it to get around 850fps and keep the gun nice to shoot. Best advice is start your tuning around 700fps. Then just increase the speed across the chronograph. You will feel when the gun starts getting ugly. Once you know that speed, then do a proper tune centered around that speed. A tell tale sign that your quest for speed has gone too far is the gun starts jumping to the left or right when you shoot. I can’t remember which way it jumps but it makes being consistent with the gun a real pain.

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    Michael
    Keymaster
    Keymaster
    Accuracy: 7

    Vetmx

    That’s up to you. If you don’t mind your PCP feeling like a springer you can get some velocity out of a Leshiy. My dad currently has mine for some larger pest removal. Mine is a .22 shooting 18gr. I had to put my 350mm on it to get around 850fps and keep the gun nice to shoot. Best advice is start your tuning around 700fps. Then just increase the speed across the chronograph. You will feel when the gun starts getting ugly. Once you know that speed, then do a proper tune centered around that speed. A tell tale sign that your quest for speed has gone too far is the gun starts jumping to the left or right when you shoot. I can’t remember which way it jumps but it makes being consistent with the gun a real pain.

    My sentiments exactly!

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    Scouty
    Participant
    Member
    United States
    Accuracy: 1

    Vetmx

    That’s up to you. If you don’t mind your PCP feeling like a springer you can get some velocity out of a Leshiy. My dad currently has mine for some larger pest removal. Mine is a .22 shooting 18gr. I had to put my 350mm on it to get around 850fps and keep the gun nice to shoot. Best advice is start your tuning around 700fps. Then just increase the speed across the chronograph. You will feel when the gun starts getting ugly. Once you know that speed, then do a proper tune centered around that speed. A tell tale sign that your quest for speed has gone too far is the gun starts jumping to the left or right when you shoot. I can’t remember which way it jumps but it makes being consistent with the gun a real pain.

    A lot of people say left but what I find is that my groups start to form a horizontal line when I take my Leshiy too fast. If anything it's more likely to be to the right of zero than to the left for me. But maybe it's how I shoulder it. I've heard a stronger spring can help but I prefer a lower power tune anyways. I agree that around 20 FPE in 22/250 seems to be a sweet spot.

    Not knowing what the OP's goals are I should add that my first Leshiy was sent to me with a reg setting of 130 bar and the HST turned nearly all of the way counter clockwise. Seller mentioned a poor shot count but that's about it. I'll just say that that Leshiy has been problematic for me so proceed with caution.

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    towle
    Participant
    Member
    Denmark
    Accuracy: 1

    Vetmx

    You will feel when the gun starts getting ugly. Once you know that speed, then do a proper tune centered around that speed. A tell tale sign that your quest for speed has gone too far is the gun starts jumping to the left or right when you shoot. I can’t remember which way it jumps but it makes being consistent with the gun a real pain.

    The hinge is on the left side so the front will swing to the left – if pushed too hard the breech o-ring will expand and the spring loaded latch will not be able to keep the breech fully shut

    Here's an example, if you look closely you can see the breech open a bit

    ..and then you will find horizontal slide marks from the valve stem on the surface of the hammer (not the best picture)

     

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    Vetmx
    Participant
    Member
    United States
    Accuracy: 4

    A Leshiy is a perfect example of just because it can do do something, it doesn’t mean you should. Lots of Leshiy second hand owners get stuck with guns that had the piss pounded out of them because the gun could. Listen and feel the gun, it will tell you where it’s happy. If you want big power in a small package, buy a bullpup.

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    acourvil
    Participant
    Member
    United States
    Accuracy: 1

    I like 830-840 fps

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    shortfuse
    Participant
    Member
    United States
    Accuracy: 1

    My Classic  in 25 cal is at 860 fps for 42 fpe with Hades 26,54gr  pellets My Leshiy 2  25 cal is shooting 754 fps at 42.9 fpe with JSB Heavies  33.95gr and Hades 26.54 at 770fps for 35 fpe still experimenting with the L2 just got it probably gonna up the reg to shoot Hades in the mid *800s  Both guns Stack em out to 35 yds and have plenty of bodies on them 😂

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