Thanks... that is what I was looking for.
So if I am reading the muzzle energy graphs right, it looks like:
G26 energy = 280-420 depending on the round
G26 energy = loses about 20-40 compared to a G19
G27 energy = 350-500 depending on the round
G27 energy = loses about 20-40 compared to a G23
Does that look right?