Just curious when changing calibers on the Leshiy Classic.25/250mmbarrel to .177/350mm barrel. Do you have to turn down the hammerspring drastically? .25/34g to .177/16g pellets.
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Tuning Leshiy Classic caliber changes
- Thread starter Demonboy5
- Start date
You have to lower regulator pressure to 110-115 bars. and the sweet spot of hammer spring will be somewhere there. +or - 3-4 clicks
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I haven't switched from 25/250 to 177/350 but have gone from 25/350 to 177/250.
As I recall the hammer spring was always within a few clicks of being at ~97% of first velocity peak. No change to regulator.
Or do you mean making the caliber switch & staying at a certain power level?
As I recall the hammer spring was always within a few clicks of being at ~97% of first velocity peak. No change to regulator.
Or do you mean making the caliber switch & staying at a certain power level?
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Im guessing the Regulator could stay at 110bar… Im going to push 13g to 16g 177 pellets somewhere in the 900fps window. Dial back the hammer spring a little. Its my first caliber change on the leshiy classic
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How fast are you shooting the 34 grain pellets with the shorter 25 caliber barrel now?
I'll be interested in your results. I do have a 177/350 barrel but don't use it as much as I thought I would since selling our old house.
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That's pretty fast for 34 grain in the shorter barrel at 110 bar. But I haven't spent much time at that power level and do not have a regulator tester so I may be wrong.
Is your Leshiy currently tuned to 95-97% of the first velocity peak with the 34 grain pellets?
Best guess is you'll need to dial the HST down as you already suspect. Look forward to the results.
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Yea I don’t have 100 rounds through it yet. I’m just curious if anybody had to tune it back for 177 before I do it
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