I have seen it time and time again where guys rest the BARREL on the sand bags or clip a cheap plastic bipod to the end of their barrel and proceed to "TRY" and shoot groups. It is quite commical to see the frustration they experience as the harmonics change along with the barrel heating up. At 200 yards they often miss the target and can't figure out why. Oh, and don't forget the fact that they continue to shoot for half an hour and NEVER let the barrel cool. Interesting test Charlie. Keep the results comming. Flinch
