could this work

[itsnotmyblood]

say you have a barlle sealling piston cannon. if you make the piston auto sealling and make a floating o-ring ram rod. could you pump your cannon using the ram-rod in the barrle and the piston as a check valve?

[skishoot]

that sounds like it would work, that is actually a pretty good idea.

[MRR]

That is actually a pretty bad idea.

You could safe time and sweat by shooting yourself in the head right away.

[irisher]

I might not be understanding the concept but, what possible advantage does this offer?

[psycix]

Barrel and pump shaft in one.
At first this seems like a practical and compact idea.

But it isn't that good.
Like others have said there are serious safety issues.
If the check valve (the piston valve) fails to seal, your pump rod and piston will get launched into... you.
With this idea, you will be standing in the line of fire of a loaded gun, so don't do it.

[itsnotmyblood]

i wasnt planing on using it. it was just a therory

[JDP12]

IF you weren't planning on using it, why propose it??? Also, please check your spelling. It's simply atrocious. I can read it, it is just annoying.

[Stolly32123]

That is actually a pretty bad idea.

You could safe time and sweat by shooting yourself in the head right away. Shocked

that made my day

[jrrdw]

Yea this is just headed to a bad place...