Modifying a chinese air rifle'CO2' and really seeing satisfying results, what a great feeling.I, in my haste forgot to streamline the actual valve, but will do that next.Might be worth an extra 10 fps or so???? Was tempted to go high pressure air again like on my QB79 but will stick to CO2 and maybe go for the bulk fill option. Keep you posted.
http://www.engineeringcapetown.com/