FYI, you have an uncut operating rod and they command a premium price. Some will not shoot with them as they are a bit more brittle and that is why later on they started cutting a notch on them to make them stronger. Will it break? Most likely not but if it were mine I would get another rod with the cutout only because it's a bit more valuable and collectable over a cut one.
One other point. I have no idea how that will hold up in a 308 but keeping within the pressures it should be ok too. Best to go to the CMP site and ask there.