I have loaded thousands of the 115g FMJ Rn from rmr with 5g of CFE p and an OAL of 1.100 with great results. Great accuracy from a CZ P10C with around 1100 fps.
I am loading the 124g at an OAL of 1.160 and I may shorten them a little and see if the fps increases. The first batch was at 4.8 g and I averaged 975 fps. I bumped the powder charge up to 5.0 but I have not test fired any of these yet. If that is okay I will reduce OAL to 1.14 and retest.