In regards to the HXP case, if your going to reload for a Garand be prepared to see a lot of rims like that................it's just what those rifles do. They are not HK hard on brass, but they beat it up a little. I'd load it, and have loaded worse.
The top cases are WW1 production M1906 from 1918..............don't use it. Lots of low number 1903 rifles were blown up do to case ruptures with WW1 production ammo which was one of the factors that lead to the "don't shoot low serial number 03's" nonsense. It was just as much an ammo problem as it was a rifle problem.