Breech Loading Design Question

[aaron_ess]

I have scoured the internet and haven't managed to find any breech loading designs similar to this one. Anyways, I was just wondering if this is a viable design, or will leaking be cause for concern?

P.S. I understand O-rings would improve the design, but I don't have access to the proper machinery.

[noname]

That would work fine. As for access to machinery, you can make O-ring grooves for that purpose with a hacksaw. If not, use electrical tape. If the O-rings don't need to hold pressure, you don't need a lathe.

[POS]

I made a breech loading gun without O-rings. Works perfectly. There is only a short sec of pressure in there. Not much air will escape, but some will though.

[aaron_ess]

So is this a viable design?

[jrrdw]

Yea, it looks like it will work, But probly easier to just use one sleeve of pipe. Getting the inner sleeve to slide without the outer moveing mite be hard to do.