Airgun maintenance

james.dean · Mar 17, 2016

Hi guys,

If I think my pcp air rifle is a bit less powerfull than it was 3 years ago when I bought it, can it come from the springs getting loose with the use?
If so, which spring should I replace? Hammer spring? Firing valve spring? Both??
Thanks for your answers and if you think about anything else.. don't mind telling !! =)

BTW, considering the rifle I own, it would be great if Mister Matt could drop his point of view here ^^ thanks again =)

John "spysir" Blount · Mar 17, 2016

"think it is less powerful" ? Or, is less powerful? Chrony numbers?
Without facts it might just be your perception.

It "could" be the hammer spring, esp. if left cocked for all that time but your hammer spring should normally last a very long time.

Give us some numbers from before & after please.

John

james.dean · Mar 18, 2016

Thanks for your answer mate.
Sadly, I don't have a chrony to verify but what İ'm sure about is that my rifle is less accurate than 2 years ago...
For the power, I'm gessing with strelok sets and measurements and my shooting at different ranges.
For example, I set strelok with the right pellets etc etc and a power of 45 joules (33 ftlbs), I zero at 45 metres then strelok says that I have to take 5 dots of holdover for 100 meters shooting. I aim with the right dot, I shoot, then notice that the pellet hits 1,5 dot low. That means, instead of 5 dots at 100 meters for the assumed (and normal) power, I have to take 6.5 dots of holdover.
That's why I came to the conclusion that my rifle has lost power.. (and accuracy but that's another problem..)

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Airgun maintenance

james.dean

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John "spysir" Blount

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james.dean

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