I disagree slightly with the folks about shooting off the bench. I've gotten great groups off sandbags with my spring guns. The problem is that the point of impact is often several inches off where the rifle shoots offhanded due to the way it jumps on bags vs your hands. So zeroing a spring gun off the sandbags is pretty much a waste of time unless you're using it only for shooting off sandbags.

I'd suspect a bad scope or loose rings as others have pointed out. I've had good luck with Bushnell Elites or Leupolds on magnum spring guns. Check the screws holding the action to the stock as well. They can vibrate loose!

Last edited by Timbo; 06/23/19.