Semisane
While I have done some experimenting with a stop collar rod I have not gone so far as to deliberately leave the sabot bullet combination clear of the powder; I am inclined to believe that could put the POI clear off the paper and cause miss and hang fires. What I did come to the conclusion of is that with the powder measured carefully and the first load set down hard then the stop set at that point they work very well; some one that had trouble getting a consistent wad pressure would be likely to see considerable improvement in there groups. I know it eliminated nearly all my fliers. Lee