system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Why didn't Voldemort just shoot Harry with a machine gun, or throw a grenade at him?

Or vice versa?  So Harry and Voldemort could only be killed by each other, but had to use specific wands to do it, but has nobody heard of guns or explosives?  You would figure if the world was at stake, it's worth at least a try to drop a bomb or spray some machine gun fire.
gpt
He could have killed Harry with conventional muggle means, but doing that would have been the antithesis of EVERYTHING Voldemort stood for. Though he was a selfish, vain, deluded and totally evil person, in his mind, he was trying to prove magic's superiority over everything else. Sure, muggle weapons are just as powerful, if not more powerful, than magic both conventional and dark, but they are still machines and devices made by people he considers unworthy, lesser and despicable. 

He could have used anything other than magic to kill Harry, but it wouldn't have been RIGHT to do so.