Welcome to the forum. If I have a gun that doesn't shoot where I aim it, I usually set up to shoot it off a bench. I rest my wrist on a sandbag and sqeeze off a few to see if the gun still goes to the same point of impact as when I shoot it off hand. If I hit where I ami it, it's just me pulling the shots for some reason. If it still does the same thing, I try to adust the sights to get it on zero. Easy with an adjustable sight gun. Not so with fixed sights.