All, I am trying to determine if my scope is not holding zero. I do not have another scope to throw on to verify. My friend said the gun shop down the road can put a bore sight on it and then tap the scope with a rubber hammer to see if the reticle moves. I am wondering what your opinion on this method is? Anything else I can do? Unfortunately I am also looking for a load that shoots well in my gun so I do not have a load that I can shoot and say "well it shot this load well before and now it doesnt...it must be the scope"