new gun plans, bolt action golf ball sniper

[jjjd]

This is my new gun design, I want to evetualy make it semi auto. It will have a 3-way solenoid valve for fuel injection(anyone know a site i can order one from, preferable 1/4"). to mix the fuel i am going to have a side bloing fan from a mac, and for venting i will have a 1 1/2" check valve with air matres inflator, I already have a bolt and barrel for golf balls from bcarms and my uncle is giving me one of his old scopes, any ideas or anything i should add.


I was going to make the propane injection in one of the sheets of pvc to shorten the length of hose but im not sure if it would be that good, what do you guys think?

[PneuJose]

why making it rifle style? i know is sniper and all that, but, then power wont go all the way back before shooting the golf ball?
just make it pneumatic.

[jjjd]

I didnt really get that, you mean it will loose power? The tees conecting the combustion and the barrel are right next to both, it is just like an over under. I would make it a phnematic but i want it to be portable and im to lazy to do it with a bike pump