So much could be at fault.
Could just be a bad scope.
Scope isn't sitting correctly.
Scope could be hung up on something. (Rear Sights, if it has rear sights) This happened to my son with his .243 when I put a new scope on it. Bought new mounts that sit a little higher and have not had any issues since.
If it was me, I would think about taking it somewhere to have the scope mounted and bore sighted.
A friend of mine was having some issues with his scope as well. Later he found out that the rings were not tightened properly and they had come loose. Not sure how he could have missed that but he did.
If it is another option, you might want to pull the scope and mounts off and start from square one.
