Originally Posted by evohuntsman
I,ve been getting good results at 40yrds but then when I stretch it to 55yrds the results are totally different some of the groups are opening up
Which is what I said Bob. Wind has more effect, as does wobble.
When you find the batch that groups as tight at 50m (15 - 25mm Avg ok if off the knee) as 40m, buy them all.