There are tons of problems with leaking in the Pistelle X-68. Why? I have a theory that the stock o-rings become brittle and fail if you shoot too rapidly causing the launcher to get too cold. Also, if you change the CO2 too fast and then again rapidly fire the launcher, you exacerbate the problem with the stock o-rings. The solution may be to use HNBR o-rings exclusively. HNBR supposedly work to -40 degrees F. Dry ice is -100 degrees F. However, I seem to be having some success with them. Time will tell.
