I have a new custom lightweight 7mm STW built on a Rem. action. Its 5.5 lbs. (6.75 with scope) its Jewel trigger set at 2 lbs. My problem is that when I dry fire, the gun moves. When the trigger breaks it doesn't just vibrate, it jumps. I assume that it is just a product of being so light. I have had others dry fire my rifle with the same results. I don't have a problem dry firing other heavier rifles, with sub .5 minute of accuracy at the range. This has of course caused accuracy issues at the range when shooting groups with the lightweight rifle. Can higher quality parts be used in the firing system to smooth it out? Am I just doing something wrong? Any help would be much appreciated. Thank you