23' tactical barrel, AR stock, and external battery pack. Two of them are fully modded with Sergey's Board's in them. I am relatively new to air gunning, but have been pretty busy. Glad to know I'm not the only one out there. Thanks for taking the time to reply, and letting me brag a little bit.:^) I think the tube that feeds the bb’s to the barrel shrunk over time. I went completely through it, and couldn’t find anything obviously wrong with it. I rigged it up to accept shop air, but I never could get it to work. I seem to remember shooting a gun at a fair just like your description of the Feltman. 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 have an unlimited supply of HPA so I do lots of shooting, and testing. I like to tinker so those guns are a good fit for me.
#Drozd blackbird hpa full auto crack#
I concluded the crack was caused by the helium breaking the sound barrier as it followed the bb out of the barrel. 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. It also shot through about 400 pages of a phone book. At first I thought I was breaking the sound barrier because shooting helium at 1000 psi is loud enough to hurt your ears.
![drozd blackbird hpa full auto drozd blackbird hpa full auto](https://i.ytimg.com/vi/jsb-XUudpvk/hqdefault.jpg)
I have shot bb’s over 1000 fps using helium. My regulated pressures are 1000 psi, and 1600 psi. I have two 90cu paintball tanks, and a scuba tank. 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 had to make a magazine spring for it because the stock spring could not keep up with the extreme ROF. It has a prototype board in it Sergey made for me. I also have a Bumblebee I am quite proud of. The other one has Jim C’s 15″ SMG barrel with his wire folding stock, and external battery pack. 23′ tactical barrel, AR stock, and external battery pack. Two of them are fully modded with Sergey’s Board’s in them. Glad to know I’m not the only one out there. I guess for now, airsoft is a better way to go even though shooting 6mm plastic BB's with no real accuracy, or knock down power kinda blows. But, until a viable air source can be packaged without a big bulk tank and hose dangling, its not gonna have a big following. 30 round pellet semi auto's are are nice step in the full auto direction. SIG Sauer thinks so, they have there assault rifle airgun versions out this year. He is right, as time goes on, the guys who shoot the PB equivalent will probably start looking into an airgun version of there gun-de-jour. I think they are cool but by the time you start converting them to HPA or bulk fill Co2 and all the other crazy hop ups, its easy to turn it into a $600+ gun.īut like Ether said. Lets face it, in America, PB's are cheap and high dollar airguns are really just coming into there own, driven by high price of PB ammo. In general I think its kinda tough to sell a $400 airgun, let alone a full auto BB gun. I guess for now, airsoft is a better way to go even though shooting 6mm plastic BB’s with no real accuracy, or knock down power kinda blows. 30 round pellet semi auto’s are are nice step in the full auto direction.
![drozd blackbird hpa full auto drozd blackbird hpa full auto](https://946e583539399c301dc7-100ffa5b52865b8ec92e09e9de9f4d02.ssl.cf2.rackcdn.com/27546/7792791.jpg)
Lets face it, in America, PB’s are cheap and high dollar airguns are really just coming into there own, driven by high price of PB ammo.