Does anyone have a link to this target. I have to do a test prior to a stalking trip. I know it is three rounds from the bench at 100 M. Do I have to get them all in a 4 inch circle? What grouping is needed please. My 6.5 x 55 is sighted in at 200 m with 120 Barnes and I am reluctant to reset the zero. The ranger says that he zeros in at 50 m with his 270.