My hw 95 newer model version was only shooting 600-620 fps with 14.3 crossman. I am at 2600ft, dad tuned this up when i first got it and my deavation was pretty spread out here lately. Even though dad fully tuned it just didn't have that strong thump when it shot. Had factory seal and spring.
I ordered a jm hornet spring and a vortex seal. We left the factory seal and just added the spring and bam lol just 500fps and was getting blowby past the seal with the new spring. Used brake clean started from scratch and tuned it up now it is shooting 705 with 14.3 and 5-10 deveation in fps.
Biggest plus is learning from dad on how to take apart a hw and how to tune it..
I ordered a jm hornet spring and a vortex seal. We left the factory seal and just added the spring and bam lol just 500fps and was getting blowby past the seal with the new spring. Used brake clean started from scratch and tuned it up now it is shooting 705 with 14.3 and 5-10 deveation in fps.
Biggest plus is learning from dad on how to take apart a hw and how to tune it..