Greetings and might I add what a nice site I have found, been lurking for a while and you all seem so nice. Onward and forward. I am trying to help a friend who bought a Rossi Single Shot .243 rifle for his grandson. We have mounted two new scopes, bushnells, and we can not even hit the paper. We have used a boresight and it looks great but when shot , oh my...been doing this for awhile but I am truly confused. any help would be great and Thanks in advance.The gun is tight, no loose anything.