I have uploaded the balance of the videos detailing the BBV MG for anyone who is interested in having a go at a build. I'd love to see what can happen with more imagination applied. I am practical to a fault and would love to see the "cool factor" buffed by people better at that kind of thing than m...

Hello, I've been swinging by here for a fair number of years to see what's shakin' from time to time and working on some bbmg ideas that have been rattling in my gourd. I've recently signed on to present one of them here to see how it strikes you all. https://youtu.be/PtMkuVCu1pg I have more content...

Thank you. And thanks to the moderators for allowing me to post this. I have just published the next video segment going into more detail on the BBV design.

Turns out that the same guys who run the Cowboy Shoots also do what they refer to as BAM shoots.... Bolt Action Military. Basically the idea is to use a bolt action military rifle in as-issued condition that dates to 1945 or earlier. It also turns out that my Mom once bought an 1895 Mauser on a whim...

https://youtu.be/JKb0yTjrQd0 "Bolt-action" sniper with metered injection, mixing/exhaust fan, "12 round" mag. Thoughts? The barrel is what slides rather than a bolt, and when the breach is open, the checkvalve opens at the butt to allow 5 second exhausting of the chamber before reloading. In the vid...

I wanted to get more data but I ran into issues with the chrony giving error codes and getting knocked over from high winds. I also ran out of limes that fit the barrels too early because I was embarrassed to go into the market with my calipers. Next time I will bring the damn calipers and they can ...

This one is just a fun experiment to answer a question that's been nagging me for over 30 years. Demonstration is at the end.

I'd install the propane inlet at the end of the chamber where there is double thickness from the coupling as shown below. http://www.burntlatke.com/lp.html I'd put the fan at the far end as shown below. http://www.burntlatke.com/jpg600/fan-frictionmounted.jpg As far as the ignition, I'd install that...

Looks outstanding. But the coax design is killing the performance. I would expect a gun that size to be firing something like a spud at about 150-200 MPH. From the video I would guesstimate about 50 MPH or less. Any idea what the chamber and barrel volumes are?

But it does looks sweet.

The teacher isn't a "professor", it is a high school teacher so expertise in this area is probably limited. :) Mark.f gave a reasonable answer. Don't need much of a "computer", you can do it an Excel spread sheet. Wont be super accurate but were talking a high school project, not a DARPA project. Ju...

Incredible what technology puts in the hands of any mortal with a decent cell phone. I like how you filmed the video

Can't believe I missed this post. JSR (guy above) covered it all. Welcome to the forums and keep us posted.

I am struck by this spring compressed air weapon, which compresses the spring with an electric motor and reduction gears, using a chain similar to those used by motorcycles. Interesting!