Loaded up some Ibeji 165rn coated heads and 7.0 of CSB-1.
The Tanfoglio and Omega like them. Don't have a chrono.
I hate to guess but I'd say based on Hod Universal it's about 1200 fps.
I put 7.0gr behind my 401-175 coated and got 1,135 out of a LW 5.15".
CSB-1 can get cranky when pushed :(