I was being very careful about the sight picture and trigger pull. In fact the rifle got away from me twice because of over concentration. The small ball of the front sight and the circle (which was traced on to the card from the inside of a scotch tape dispenser) made the #8 for me. Then I would squeeze it off. I was really surprised that a ball that went down that easy shot that accurate...

Thanks guys you are a great help, I havent got a chance to try these suggestions yet but when I do I'll give you an update. Merry Christmas to all and I hope each of you have a wonderful day.