Just as a precautionary note.... I've had oil-doaked primers that still go "bang", so don't think they are disabled just because you give them a soaking in oil or water or whatever. Now, I'll grant you that I detonated them with a large hammer on an anvil, but the fact remains, they can still have explosive capacity even if treated.
Until the primer is detonated or totally removed of primer element, it can still be live.
On another note, I've fired standard primers (not 50 cal) off of a hotplate and they could hurt if you were standing right over them. They do explode!