I don’t think Glaser makes 5.7 ammo.
It originally came with SS190 ammo for armor-piercing capability.
They the sissies got squeamish, so there’s a lead-core round.
I think there’s a third “training” round.
Blue on ammo means “training”, so it might be the cheap training round in the pic.
I actually don’t even know what 5.7 for pistol is. Never heard of it.
I use to have Glaser .38 and .45 years ago.