I' ve been working up a load for my 25.06 and have found a good load for my rifle. The last 5 shot group i shot put 3 in the same hole with 1 a 1/4" below those 3 and 1 a 1/4" to the left of those 3 . This may be a dumb question but from what points do you measure a 5 shot group? Thank You!