You need to shoot from a solid rest.
Use decent ammunition.
I see from your other post you are trying to shoot at 100yds,the wind and ammunition inconsistency will create a lot of trouble for you.
Shoot at a reduced range (25yds) until you get consistent.
Practice...Practice...Practice!
It only takes the smallest deviation when you pull the trigger to make a big change in the point of impact on your target.
Good luck!