300G on a half pound drive is not tons of force.
300 g's acting on a 1/2 lb mass is about 150 lbs of force, nowhere near the "tons" of force some people are claiming HDD's can tolerate.
Newegg needs to get their act together about packing drives properly for shipment. I have received 2 DOA drives in the last 6 months from the egg and have had to pay for return shipping on both, in addition to having to wait for the replacement drives to arrive (which can be a matter of weeks). Bottom line, I don't buy HDD's at Newegg anymore.