There is a rubber o ring inside the chamber where it connect to the barrel, and when you put the ammo in the barrel it is pushed tightly up against the o ring which forms a seal in the chamber, the ammo is then held in place by the trigger so that when the chamber is filled the ammo doesnt fire out untill the trigger is pulled which unblocks the ammo's path out of the barrel. I wanted to make this gun because the only other one ive seen using the valveless idea is a pellet gun by JSR, and also i wanted to make a gun with a trigger like you would have on a real firearm.
The gun is primarily a shotgun for close range shooting, but once i have some money i am going to make a long sniper barrel for it, and hopefully also i will make a magazine for it so that it can be loaded quickly. I run it at 110psi and at the moment the main ammo is potato with a metal cap infront of it to stop the trigger shearing the potato in half when it is put under pressure, but i will be making some shells for it in a day or two,
Now on to the pics and videos
This is just a pic of the whole gun
This is a pic of the trigger mechanism and the stock
Video of me shooting a milk bottle with a piece of potato and a battery
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Video of me shooting at a box and a lid
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hopefully there will be more videos to come soon
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