[L473ncy]

You could also be "pulling back" or anticipating the recoil. Don't and you will shoot more straight but I agree with T7 that it could also be the hop setting being too high resulting in overhop.

Try shooting at a distance and see what path the BB takes. Then tune the hop so that it shoots straight. It could also be the ammo you're using too. ie. Gun might be tuned for .25's but you're using .20's or vice versa.