Is the rifle configured in a way to fulfill your task?
Setup is an odd one, it’s very subjective. Some people have preferences that deviate from the norm, but as long as it works for them effectively, then so be it.
What do we mean?
For example, let’s say your General Purpose Rifle is a Mosin-Nagant. This choice is for sure a weird one. However, due to someone’s circumstance, it may be all they can afford; there are some caveats, though.