I think you’re confusing helium for nitrogen. Helium has been used for decades in PCPs (mainly big bores), netting around a 30% increase in power.
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Huben GK1 on Helium
- Thread starter Azycray
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Well you were certainly right. I'm not sure exactly what is figuring in to it but I used a 36g AVS dish base hollow point, which I would have thought would have more friction than the pellet I used last time, not to mention the extra weight. I suppose the added friction/weight could give slug more time to build up pressure behind the slug and then sling shot it faster? IDK but the first full power shot was even a bit faster than the pellet, which at 1378fps = 151.83 ft/lb
I made a 2 minute video for comparing sound again so only made two shots, and I rambled a bit the first minute so I apologize but you can see the chrony in the video. The sound was actually louder with the suppressor on, probably just within the normal fluctuation of readings. I'm guessing that since the suppressor was made for a .25, that is the main reason it itspretty much useless on this .22 GK1.
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After listening to the sound levels on both my phone that recorded it and my computer, it does not give a good comparison sound wise. There must be a sound level limiter built into the phone so keep from damaging the speakers when re played is all I can think. I had on headphones for protection and I could tell it was loud. Plus knowing from past shots outside. The only real indicator is the sound meter and it didn't give a good indication either. One indicator is the ringing heard after the first shot, I don't know what was ringing but the energy release is responsible, must have been something close. Not so much a ringing maybe a vibration, like a spring of some sort that you can't hear with the suppressor on, so it did do something.
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Some of the insanely heavy air rifles could use a good dose of helium IMO.dont put in to much helium or your gun might fly away
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