This 200yd 5 shot group was fired right after shooting a 800yd group. The 800yd group measured 3 inches my daughter was very happy, she ran the elevation down to the 200 yd zero and reset the parallax. She fired the first shot which is the one to the left and said the scope just went fuzzy. She moved the parallax knob again and said its clear now and fired the next 4 shots which measured .556. When she initially reset the the parallax she said it was right at the 100yd mark which she thought was weird. the last 4 shots it was a little past the 100yd mark. Is this her scope starting to go I did not have any rounds left or we would have gone back to 800yds. Scope is a IOR 6-24 SFP she really likes the scope it is the newer model with large exposed knobs. thanks for any help.