Even though I am "essential" personnel, I have had a bit of free time and collecting what I needed for a project.
I'm the sick person that made a Super10 MKIII .22 into a carbine. I've always admired the platform even though it's dated and wanted a .177 to go with it. I found one and it's a MKII. When it got here, I was hesitant to make any changes because it's super clean, however the bottle removal for charging was out. I was planning to do another Quick-fill unit from Dr. Bob's, but I always had reservation about the length of the cigar unit and the less than simple regulator adjustments.
Long story short, I decided to go to a carbon fiber bottle, which led me to think about the quick-fill, which led to the regulator, etc...
So after some waiting for a bottle, a fill unit with gauge and regulator from Huma Air along with some taps and dies. I made my own shortened cigar body this weekend with the original valve assembly as the only original BSA component. Everything forward of that is exemplary of my own twisted mind (insert evil laugh here)
Now I have a 300 bar. 220cc tank, the simplicity of a Huma, about a pound less brass, steel and aluminum, all in a package about 3 inches shorter.
I did a quick test to see where my starting point is and with the regulator at the factory setting of 136 bar, I was zinging 10.65gr. Barracuda Match pellets over 950fps through the chronograph, but it climbed through the three discreet shots I fired in my side yard, so it may want to settle higher.
My goal is to throttle it back and go for a high shot count and mouse fart quiet package. I'm still on the fence if I want to shorten the barrel, so for the time being no one has to panic that the barrel will wind up on the lathe. Yet....
The stock is the original beech, stripped of the IKEA furniture finish and dyed green with products from Keda Dye co. I'll still have to shorten the forearm before I can set it in the stock, but I'm just happy that my proof of concept worked.
For the technical and tuner types, there is a plenum approximately 20cc after the regulator. I used some crude math to get a rough ballpark, so don't crucify me for not being too analytical. However, the pellet weight and velocity put me over 21FPE, so I didn't scare up too bad. I have a feeling that right now, it's an air hog, not that it was too loud, but it seemed like it was exhaling post shot, like my Theoben Rapid .25 which is an excellent example that I love just the way it is.
I'm not sure if that's enough info, so if you have any questions, feel free to ask.
Mark
I'm the sick person that made a Super10 MKIII .22 into a carbine. I've always admired the platform even though it's dated and wanted a .177 to go with it. I found one and it's a MKII. When it got here, I was hesitant to make any changes because it's super clean, however the bottle removal for charging was out. I was planning to do another Quick-fill unit from Dr. Bob's, but I always had reservation about the length of the cigar unit and the less than simple regulator adjustments.
Long story short, I decided to go to a carbon fiber bottle, which led me to think about the quick-fill, which led to the regulator, etc...
So after some waiting for a bottle, a fill unit with gauge and regulator from Huma Air along with some taps and dies. I made my own shortened cigar body this weekend with the original valve assembly as the only original BSA component. Everything forward of that is exemplary of my own twisted mind (insert evil laugh here)
Now I have a 300 bar. 220cc tank, the simplicity of a Huma, about a pound less brass, steel and aluminum, all in a package about 3 inches shorter.
I did a quick test to see where my starting point is and with the regulator at the factory setting of 136 bar, I was zinging 10.65gr. Barracuda Match pellets over 950fps through the chronograph, but it climbed through the three discreet shots I fired in my side yard, so it may want to settle higher.
My goal is to throttle it back and go for a high shot count and mouse fart quiet package. I'm still on the fence if I want to shorten the barrel, so for the time being no one has to panic that the barrel will wind up on the lathe. Yet....
The stock is the original beech, stripped of the IKEA furniture finish and dyed green with products from Keda Dye co. I'll still have to shorten the forearm before I can set it in the stock, but I'm just happy that my proof of concept worked.
For the technical and tuner types, there is a plenum approximately 20cc after the regulator. I used some crude math to get a rough ballpark, so don't crucify me for not being too analytical. However, the pellet weight and velocity put me over 21FPE, so I didn't scare up too bad. I have a feeling that right now, it's an air hog, not that it was too loud, but it seemed like it was exhaling post shot, like my Theoben Rapid .25 which is an excellent example that I love just the way it is.
I'm not sure if that's enough info, so if you have any questions, feel free to ask.
Mark
