BB Machine Guns

We are not Pumpers. We are not Springer's.We are not Co2. We are the Others who will be taken seriously eventually. We are moving out of the air gun pic world, and have a lot of knowledge we can share. I mean no disrespect as I don't want to incur disrespect that already comes with the topic. Perhaps this thread will one day make it out of the heap.

Glad to know I'm not the only one out there. I am relatively new to air gunning, but have been pretty busy. I have only been in a few years. I have three Drozd Blackbirds. Two of them are fully modded with Sergey's Board's in them. One has a Jim C. 23' tactical barrel, AR stock, and external battery pack. The other one has Jim C's 15" SMG barrel with his wire folding stock, and external battery pack. The other Blackbird is completely stock. I also have a Bumblebee I am quite proud of. It has a Jim C. wire stock, and HPA adapter. It can fire 4000 RPM. It has a prototype board in it Sergey made for me. I had to make a magazine spring for it because the stock spring could not keep up with the extreme ROF. In doing so I lost the capacity of eight bb's so you get a full third of a second of trigger time with each mag. I have two 90cu paintball tanks, and a scuba tank. My regulated pressures are 1000 psi, and 1600 psi. I have shot bb's over 1000 fps using helium. At first I thought I was breaking the sound barrier because shooting helium at 1000 psi is loud enough to hurt your ears. It also shot through about 400 pages of a phone book. I shot it outside, and could hear the distinct crack you hear when something breaks the sound barrier, I bought a Chrony to find out. I was actually shooting around 1000 fps. I concluded the crack was caused by the helium breaking the sound barrier as it followed the bb out of the barrel.

I like to tinker so those guns are a good fit for me. I have an unlimited supply of HPA so I do lots of shooting, and testing. I have a range where I work so when things are slow at my real job I like to punch paper, and tweak my guns. I seem to remember shooting a gun at a fair just like your description of the Feltman. That was loads of fun. I also have a Lark my uncle gave me. I rigged it up to accept shop air, but I never could get it to work. I went completely through it, and couldn't find anything obviously wrong with it. I think the tube that feeds the bb's to the barrel shrunk over time. 

Thanks for taking the time to reply, and letting me brag a little bit.:^)

Best regards,
e

You are right about it being a niche market, and the expense although comparing a fully modded Blackbird to an air soft gun is anything but fair. It took me while to pop on my first bird. I'm glad I did, and got in before they dried up. Just because the Blackbird's aren't readily available these days doesn't mean game over for high end bb machine guns. In fact the party is just beginning. There are several of us working on it behind the scenes. We are not looking to get rich. We just want to spread the joy of pelting the crap out of stuff with bb's.

I made this gelatin two ounces to one cup of water, and it has dried out a little. This may be the fastest anyone has ever shot a Blackbird. I Chronyed it. Check it out.

Not at all. I have been trying to make a Drozd Blackbird shoot supersonic. The gun I am using is shooting 4.5mm steel Daisy zinc coated bb's. The barrel is a 23" shallow rifled Jim C. barrel. I just happen to have easy access to helium because my wife is a florist, and does balloons. When a forum member from another forum suggested helium I didn't even have to leave our shop to fill my paintball tanks. I have other videos on my YouTube channel on helium in this gun. This gun is very wasteful when you start using helium. I read in an archived forum I am having trouble finding from '96 where some guys were using helium in their PCP's with a gain in fps as much as 80%. They were using pumps, trash bags, and the party balloon helium canisters that resemble propane bottles to get in their tanks. If I didn't answer your question I love talking about the fringes of airgunning so please don't hesitate to ask for clarification. I know very little about your world as far as conventional airgun's, I am here to learn too.

The gun is controlled by a circuit board that has various settings on it. The bb's are gravity fed to a motor driven auger at the bottom of the mag with an agitator plate that keeps the bb's moving, and pushed up a feed channel into firing position. I realize there are is a language barrier for some of us. BAR = PSI. I haven't taken the time to work that out, but it's the same thing. Pulse width duration is how long the solenoid has voltage applied to it (how long the valve ia open). This equates to a conventional power setting, but digitized. Please forgive me if some of this is blatantly obvious to you. I am the alien here.

Yes. The valve is actuated by a solenoid striking it, and works in a similar way a tire valve does. It is gas powered. This particular gun has 1 to 10 round burst, or full auto selections. The rate of fire starts at 400 rounds per minute, and can be selected in 200 round increments up to 2000 rounds per minute. The valve can be set to stay open from 4 to 12 milliseconds per shot. All of these functions have been digitized unlike a stock model. It has a been modified with a special circuit board, and the internals have been beefed up with a few other modifications. The gun was originally designed for Co2 so it was limited to 1, 3, and 6 round bursts at 300, 450, and 600 rounds per minute. Any more than a 6 round burst at 600 RPM would freeze the Co2 cartridges.

I knew about it, but have never seen a review. I kind of dismissed it because at the time when I was looking at them there wasn't a speed loader. Cool! Thank's for the link.

I have a Lark also. I personally can't really classify it as a bb machine gun because it uses the Venturi Effect. I guess it could be technically though because it has a trigger. I posted a full Blackbird kit one of my customers never put together if you really want to. It would make a fun winter project. Whomever snags it I will help them set it up. That is one of the last new ones you will probably ever see on the open market for that price with all of the goodies. I'm just trying to help a friend out. That sounds like a good read. I will have to check it out.

I just realized there may be some issues with trust. I am also Parellax on these forums. Feel free to check me out for any bad feedback by contacting any of the forum members. I mainly help bb machine gunners find what they are looking for.

http://airmachinegun.com/smf/index.php

http://bb.bbboy.net/straferbbmachinegunownersgroup-viewforum?forum=10

Here is a taste of what is to come. I know these gun's are hard to find these days, but today we hit another benchmark that will help us all in the development field. I am happy to share this. 
https://www.youtube.com/watch?v=XHZZ-QXiX-I