I use CFE223 in the 204 Ruger with the Hornady 40 grain VMAX. Load is near Hodgdon's maximum level so work up the load for your rifle. It also works well with Sierra's 39 grain Blitzking.
I shoot it in a long barrel AR-15 and a bolt rifle. Since near maximum level, case life in the AR-15 is short.
With 32 grain bullets, I have a good load with another powder so I have not spent the time developing a load with CFE223.