Is it possible for hopup to curve horizontally?

Question

I have a well 96 airsoft sniper rifle, and whenever i take a shot at long range (70-100 feet) the bb curves to the left. does this have to do with the hopup? if not then what whould the problem be this is a brand new rifle so i dont know of any defects yet.

Answer 1

I'm not familiar with the term hopup, but if what you have is indeed a rifle, it puts a spin on the projectile to flatten its trajectory.  The price you pay for the flatter trajectory is a curve to the left or right, depending on the direction of the rifling grooves.