Have you considered running your Discovery on CO2?
May 6 2012, 7:06 AM
In the summer, I run my Discovery(s) on CO2. It's self regulating, and easily increases shot count (.22 cal.) to well over 60 shots with an average fill. My .22 cal. shoots 14.3 grain pellets at 500 fps which is 7.94 FPE.
How much quieter does this make your Discovery over HPA? Have never run my Marauder .25 on HPA yet, just CO2. Man is it quiet! I only get about 13 dead on shots and then I have to refill or use the mil dots for elevation. Thinking about getting a Discovery too. Would just use CO2 also, but was wandering if I would have to put on the "silencer" thing.
The Disco uses the same transfer port as the 22xx series, and it would...
May 6 2012, 10:51 AM
...certainly be possible to make a custom version with a restricted ID, but I don't know of anyone who does. Another (easier) option would be to simply reduce hammer spring power, then reduce fill pressure to get an acceptable shot/velocity curve.
The best option would be to install a regulator, which would make 150 shots per fill easily possible in .177, 200 in .22.
...then pressure is easily adjustable via the setpoint nut accessible through the vent slot.
As for power adjustment, one of the really nice advantages gained when a regulator is installed is the ability to quickly and easily adjust power by simply changing the hammer spring preload. So while an adjuster really isn't necessary, without one you'd be missing out on half the fun of having a reg' in the first place.
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