It might cause a bullet to get stuck in the bore, but it might not move them at all either. A lot depends on the weight of the bullet and how much force is needed to break the bullet loose from the grip of the case neck. I have seen a situation in which the reloader forgot to put powder in some of his reloaded cartridges, and all the primer did was to blacken the base of the bullet. The bullet did not move, and we had no clue as to why the rounds misfired until we pulled the bullets and found the cases were empty..... (180-grain in .308 brass.)