I tested cfe in my 20P.The loads below were NOT hot in my BHE P3 bbl, pressure signs not there, primers rounded.
Groups not that exciting overall.
The same loads using blc2 were even smaller so I stopped using cfe.
Seems CFE gives fair speed, but never really gave me cloverleaf groups.
All seated at 2.260" in my AR15 build.
28g cfe, 35g berger, 3648 fps, .667"
28g cfe, 34g dogtown, 3665 fps
27.5g cfe, 34g dogtown, 3626 fps
28g cfe, 32g vmax, 3738 fps, .967"
27.5g cfe, 32g nbt, 3633 fps, .800"