With new you tube video about tuners, just like the your groups are to small video, this new video will stir the pot. While I believe hornadys findings are true, I believe they are only true for the hornady products they are testing. The shooters at the highest levels of the precision accuracy disciplines are not using hornady components and are getting a different/better result than the hornady videos present. Don't get me wrong I have/like and shoot hornady ammo, but when they/honady says this is the size your group will be, or this is all you can get out of a barrel tuner. These statements are only true for their ammo and test guns/equipment.