In my engineering experiments with plenums transfer ports were something I intentionally avoided and used the Airforce platform. Uncontrolled variable among the various mfg.I'm getting 70fpe with the 35g cast peanut slugs but at 210 bar.
The 4mm barrel TP is anemic. I didn't get to the valve but I'm assuming it wasn't opened up enough. Seems like they got all the other things you'd need to do to make big power but neglected to open the ports up.
I assume that people that are doing oval TP is so they can get a transfer port larger than the inner diameter of the barrel.
Upvote 0