Using a pneumatic cylinder to reset bolt, i.e. no bolt spring idea

[ultralight]

i don't feel like rooting around for the link but somewhere on Ao theres an animation of the inner workings of an ion... it is very very close to what you guys are discussing.

basically, in an ion, the bolt is the on/off as well as the bolt. once the pressure in front of the bolt is released then the bolt moves forward firing the ball and sealing the dump chamber. after firing, the chamber fore of the bolt is pressurized, moving the bolt rearward.

i think...

[93civiccpe]

This is a really good idea and I like the upsides of this design. Definite advantages to it. My only concern for you would be to make it as efficient as possible. Because now you will be using more air per shot instead of just going with a spring to get the job done. I do belive with a pressurized system y ou can achieve a higher rate of fire than a stock spring, so I'm interested in how this is gonna turn out.

[SlartyBartFast]

Because now you will be using more air per shot instead of just going with a spring to get the job done.

Ahh. But that isn't necessarily true. The Spring isn't DOING work. It's STORING energy.

One way or another the energy to cycle the bolt comes from air pressure.