psycix wrote:Is it me or do you keep dropping these suggestions with a wink?
Just throwing spaghetti at the wall, maybe some of it will stick
Sorry, I'm not convinced that a cartridge design is the most practical mechanism.
Fair enough, I'm aware this is mostly a personal obsession with flying brass hehe
The diagram you posted is... hard to do unless pellets can seal.
The orange balls...
If they are balls from a QC, then it won't seal, unless the skirt of the pellet seals.
If they are an o-ring, then the piece of pipe after it will be cut off.
Balls! Though slots cut for an o-ring could conceivably work as well, and be less likely to deform the projectile.
So, can pellets seal 800 psi by the use of the skirt?
Never tested it that high but it sealed to 350-400 psi in
this project, the pressure would bend the projectiles a little but that's because they were only held by one pin, obiously having 2 or more would alleviate this problem.
is this gona be a new marker gun
Nope, one for the curio box
what do you use to make the tiny seals on the piston and at the end of the barrel, some type of rubber?
The piston is cut from solid 10mm thick rubber, so it doesn't need any extra seals. At the breech end of the barrel I wrapped some masking tape and covered it in Araladite to spread the contact area between the breech and the barrel and therefore avoid the barrel cutting into the piston.