I suspect you're wondering if it is corrosive primed. The answer is MAYBE. I had two different crates of the same ammo but from different lots about a year apart. The early one seemed to be corrosive but the later case wasn't. Luck of the draw I guess.
It is Berdan primed and uses painted steel cases just like milspec ammo.
It is loaded to the same velocities as milspec ammo with full metal jackets other than this stuff is loaded with soft points. I used it on a couple of Deer and calling it soft/expanding ammo would be a bit of a stretch. Very small exit holes.