This is tested by Myth busters . The myth said that Apple laptops were bulletproof so they performed two tests, the first one failing.
After going directly for the heaviest component, the battery, the second experiment’s outcome surprised them: “We are at really close range, with a 12 gauge shotgun.” Tory Belleci added:
“If you hit the battery, your [Mac] is bulletproof.”
Finally if bullet fired on battery point of your MAC then this is bulletproof and save you from bullet.
Is Apple Mac are really Bulletproof?
“Yes,Sometimes when bullet fired on battery point“