system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: the scope of a gun is on top of the nozzle the bullet comes out of, so wouldnt the bullet hit a bit lower than where you aimed for?
gpt
The scope is adjusted to correct for this (and for bullet drop in flight) at a specific distance. If you change distances, you need to readjust the scope. The scope is not purely parallel to the barrel, otherwise the bullet would always hit low.