I recently got into hpa and bought a jack player package from amped. After finally getting the alignment right, I noticed the gun would hop bbs perfectly fine for the first half of a mag, then begin to drop them as the mag ran out. They’d go about ~100 ft and curve right down. I tried different mags and bb brands, but it does this to all. A brand new rhop setup from amped didn’t fix this issue either. Any suggestions?