Bent M1 Garand op rods are EXPENSIVE to replace is why. Military M2 ball load specs matter for that reason in 30-06 loads.Sure why not?
I'm not sure about this ammo for the Garand. The folks at the CMP will know for sure. SG buyers come up with stuff and they are not technically qualified to know the difference. I would tend to think that the CMP does not have any of this because it is not suitable for the Garand. But I really don't know for sure.
If you buy some, do you have a bolt gun to shoot it out of?
CMP not having any would not be a determining factor for purchase, as they would not buy it at the price that it is being imported at and they have a ton of Greek in their coffers.