Actually, the first E-Tip I recovered from a big game animal, a prototype 180 .30, weighed 180 grains, even though the tips weigh about 2 grains. That was because the boys at Nosler forgot to subtract the weight of the tip when figuring out the total weight!
The production models weigh 180 out of the box, and the only one I've recovered weighed 178.2 grains.
