Need some help with my first "bottle build"

Thank you for the quick response -

How do I safely evacuate the tank?

Thank you -

Hopefully there will be a happy ending lol -

Stay tuned!

Back off the low side burst disk (the one with the lower rating) just enough that it starts to hiss. When the hissing stops, back it off a little more until it starts hissing again. Repeat until empty.

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Thank you breaux -

That was a fast response, and your advice was 100% spot on -

Did just as you said, put everything back together, pressurized bottle, gun fires.

Has a very bad blow by issue at the transfer port, but that is fix-able.

Here's a pic of the "proto-type" lol -



Well it wasn't just the x-fer port leaking, also had a weird valve stem, looked like a P-rodmaybe? Anyway, re-sealed everything on her, replaced valve stem, now with a trimmed Disco hammer spring and no pre-load on the power adjuster, getting 705 fps with H&N 14.66. With power adjuster cranked all the way in just shy of coil bind, getting 845 fps.

I have another valve, and other barrels to play with, this may end up as a .25

If anyone has a Cothran or RC Machine riser breech just laying around not being used, give me a shout! Also really want to find an aftermarket 2250 stock for this thing, so it will feel less contraption-like.





Vines

 



Here's how she's set up now -

Stace breech, CCS 18' .22 barrel, JDS Airman bottle, reg, and drop block, and a p-rod trigger group.

Hopefully the weather will hold up this afternoon for sight in and chrony work.

Thanks for the kind words. Check out JDS Airman, going out of business sale, everything half off, drop block only $50.00!