Can tuning the hammer spring (like giving it more tension using an o-ring) of a pcp airgun increase the velocity?
Just a simple question: pcp hammer spring
- Thread starter dlancerx
- Start date
Generally compressing hammer spring more will increase pellet velocity up to certain point, after which it will waste air and not increase velocity. I am not convinced o-ring will work.
What rifle are you trying to adjust?
What rifle are you trying to adjust?
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Yes or No, depending on the gun. If you are already tuned for a declining string (max FPS on first shot ie Korean Cliff) then the answer is likely no, if you are regulated and tuned on the lower side of the "knee" then Yes. If you are unregulated a bit more preload (via adding any type of spacer) and an increase in fill pressure will result in a higher average FPS.
It all depends on the gun and it's current "tune".
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It's an Indian made pcp, the first of its kind, Precihole PX100 Achilles. As mentioned on their website, it's an auto-regulated pcp.
https://www.preciholesports.com/px100-details.html
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Auto-regulated is not clear enough. Is it auto-regulated with valve spring or does it have regulator inside the tube? The answer to this question will determine behavior of increasing or reducing spring compression.
If it is not regulated, then increasing hammer spring will move highest possible velocity to higher pressure setting.
Like in the graph below.
If it is regulated then you can see increase in velocity with increased hammer spring tension if it is not already at the max spring tension for that pressure and plenum size.
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this gun contain no regulator. i think balanced valve they are addressing as a self regulated!! (
Auto-regulated)
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