Just when I've been considering getting a P12 again, this thread pops up...
thats a really good deal.. cant think of any sub 200 dollar pcp bullpups on the market.
I assume with your port specs you are planning an unregulated build. With the relatively short barrel length and 300cc tank a free breathing, regulated Cobra valve would really shine at your desired power levels. I would venture to say this combination would be capable of yielding more shots within 4% or less ES than unregulated. But this is coming from someone who doesn't have a significant amount of experience with unregulated tunes....
Quote from: mackeral5 on June 27, 2020, 07:19:46 PMI assume with your port specs you are planning an unregulated build. With the relatively short barrel length and 300cc tank a free breathing, regulated Cobra valve would really shine at your desired power levels. I would venture to say this combination would be capable of yielding more shots within 4% or less ES than unregulated. But this is coming from someone who doesn't have a significant amount of experience with unregulated tunes....You may be right, it would be slightly more efficient, but would have less overall capacity. Not really sure which one would yield more shots.That being said, I'm not the regulated type of guy. A reliable, well tuned, unregulated pcp is more my style. Plus I will be making another bolt and barrel combo for this down the line to shoot my .250 bullet I designed (if I enjoy the bullpup style that is) and at 52 grains I'll need all the plenum and porting I can get. I don't want to have to open the valve throat any more than it is. At .20 porting I should be able to shoot the 52gr .250 at 950 fps unregulated