taken fromIt isn't a hollow point. It is an Open-Tip Match round much like the M118LR. The jacket is drawn from the base (instead of the cheaper method of jacket drawn from the nose and an exposed lead base) to the tip of the bullet. The tiny little hole there is just a remnant from jacketing the bullet that way. It isn't designed for expansion or calculated to cause unnecessary suffering, so it doesn't violate the Hague conventions
It's about as good as a 5.56 round is going to get for the military, but what do you know, I (and probably you) don't have to follow the Hague Convention, and can get real ammo to do the job.