Battle Exhaust Air Releaser
(and 667 because it's not quite the beast, but the neighbor of the beast. w00t Iron Maiden \m/:twisted: )Assembled in about 30 minutes, most of the parts are from Lowe's or Mcmaster. The scope was a very late addition, mounted on it about 30 minutes ago. This is my second launcher, my first being a ball valve pilot pvc gun. Feels great going from barely accurate and leaking at 40 psi to shooting dead on target 25 (yeah that's right
) meters away, and nailing that 3" nail in 1 inch into the wood.The QEV, when it arrived, wouldn't seal. I pumped for 5 minutes, heard air leaking from the barrel. I disassembled it, and stared at it for a while. After remembering what BTB told me a few days ago (thanks
) I put a spring between the half I took off and the piston, to provide that little bit of more pressure that the piston needs to seal correctly. (This later failed again, and I just put 2 springs in it, 1 inside the other. Works great so far. Also, if I tap the schrader fill valve on the pilot side, this thing is a good semi auto. Again, thanks BTB)Still reading?
Specs:
-3/4" QEV (overkill on a .5/.25 pipe gun IMO)
-1/4" pilot trigger
-1/2" barrel
-10" long, 2" PVC chamber. No DWV this time, learned my lesson when the first blew up. Planning on making a chamber that resembles stock, so I can put it up against my shoulder for stability and more comfort. This one works great as a monopod though, the center of balance is right in front of the chamber.
-breach loading, just a cutaway on the pipe, 2.5" long going down the the center of it. 1/2" repair pipe over it, perfect airtight seal. Slide to open, load projectile, slide to close.
-scope. Used one of the dove rings from the scope and screwed it onto the pipe-female fitting soldered onto the barrel. Then, took a nut ant screwed it into where you would screw the rail on. Screwed the other one onto it, and taped the other end to the QEV with some nuts under it to keep it level. Very sturdy, and didn't need any sighting in.
Pictuuuuuuures:
Beware, some were taken with the crappy 2mp phone, some with the 12 mp camera.
The entirety of it
Pilot side.
Taped trigger inside 3/4" pvc pipe for comfort, works great. Looks.. eh not so much.
Breech slide closed.
Breech slide open.
Chamber/side view.
Scope mounting.
I had this before I had the scope on, my "Iron" sights. By the muzzle is my also ghetto muzzle break/silencer. Will upgrade it very soon.
Aha, shot looking down the scope. Actually took me a few takes to get this right, because in order to see clearly from the scope you need to be the perfectly right distance away from it. About 2 inches.
Bike pump, 10 pumps to 60, a lot more to 120.
The usual ammo. A 3" nail inside a plastic twist-on wire cap. Dunno the model, but it fits great in 1/2" copper. Near perfect seal. Excuse the quality and shadow please
DAMAGE
Plastic caps broke off the nail after they hit the wood, penetrate about 1/4" inch and then shatter. Nail went right through. Again, with phone.
Would love to hear your comments, questions, concerns, criticism, suggestions, and anything of the sort, please!
