I have a 1:14 .22-250 for which I am trying to develop a load. I have read best accuracy may be found just off the lands. My problem is I am limited to 55 grain or lighter- which are too short to allow adequate seating depth in case mouth in order to come anywhere near the lands. How is best accuracy obtained? The gun is meant for varmit shooting yet it seems to have been designed so that optimum accuracy cannot be obtained? Any suggestions?