I have tried them in my CZ in .221 with OK results. I used my most used load data with the 40 grain bullet loads as a starting point. With 16 grains Lil' Gun it was pushing that little pill to around 3600 fps easily, but did not get the accuracy that I did with the rifle's favorite bullet and that being the 40 grain Ballistic Tip.
Let us know what kind of luck that you have. Always willing to try a new load for my Furball.
I haven't used the 30 gr Bergers but I am now using the 34 gr Varmint Nightmare Xtreme almost exclusively. I am using 16 grs of Lil'Gun (max load) and getting groups in the threes with a used CZ barrel.
Charlie