I usually shoot at 2000 psi. The pilot volume is almost non existent, so it opens with a sharp bang. I am currently figuring out how to go about attaching the sights. But honestly its fairly easy to aim as is. Although it would be cool to see the performance at 50-100 yards. I'd put this thing up ag...

Here's what I'm shooting.

I'm shooting 360 grain slugs at the moment. At 1800 psi it shoots clean through 2" plywood. No hesitation at all. At 3000 I feel like it could drop a grizzly bear. A chronograph is pretty high up on my list but currently I dont have any actual number for performance.

Thanks for the idea JSR! I continue to make more modifications and improvements to this thing. scoped.jpg For example, I've added a scope, and a proper laser sight (not shown, on the other side) for greater accuracy at longer ranges. snow with bolt action 2.jpg I've also added a proper bolt action/i...

Running some tests with the system presented here, I have noticed that for the same pressure, there are differences when using this system and pumping with the manual air pump. I think that the energy of the shot is greater when compressing with the manual pump because the mixture charge takes more ...

Wonderful work, and if it is functional, much more! Ami I like small things, airplanes, weapons women etc.

Finally got good internet after moving house, 100mbps

I think you just left it high and dry, did you get the material from some fake plastic trees? :D Interesting observations, the question is whether this air was already in the sealant or if it was forced in by the pressure. No cheapo stuff here, E600 adhesive, and car engine gasket makers. Both come...

So I've put something together, its a hybrid clone of my phenumatic rifle. Right now they share a barrel but it will get its own dedicated when complete. For the time being I have had a few successful test shots at 10x using the chart from the forum. They are hard to repeat. But I have had some succ...

Since posting i believe i have figured out my issues. I noticed that if I leave the gun sit for roughly a minute before firing it goes off reliably. I increased the chamber volume aswell.

I am in the process of creating a "venturi" fuel mixing system to mix the gasses as the chamber is filled.

So a little update, I did a little shooting. At 1000psi I got 586 fps. Roughly 275ft/lbs. At 3000 I launched the chronograph across my drive way and I to several pieces... so not real performance data. How ever in the never ending quest of moar-power I have assembled a hybrid out of nearly identical...

Neat. Yeah, hand-cranking is the safest way to go, but it's properly slow. The next one is to thread away from the chuck, for normal threads that means mounting the tool upside down and running the spindle backwards.

Unfortunately I did not. I know you guys want videos! I am here in Colorado and we have snow at the moment... we should have some nice weather coming up. Maybe this weekend... I have switched over to my hybrid though. As far as I am concerned this thing is complete, a smashing success. I even replac...

I have finally completed a simple coaxial pengun, yet another copy of a copy of JSR's design from so long ago. I'm very happy with it! 20201216_154331_HDR.jpg The build is made up of two 1/8" brass pipe nipples coupled together, with an OD 7mm ID 6mm stainless tube epoxied inside. Inside of that tub...

You can check your question here: https://www.spudfiles.com/viewforum.php?f=5 This place is for serious questions, "Short question topic". It may happen that the refrigerator compressor is dirty inside. I removed a black residue from mine that obstructed the entire airflow and fouled the entire weap...