The IBS and everyone else says 5 shots is fine for light gun. That is fine if you want to promote small grouping. 10 shots is more realistic and historically more correct for Benchrest. As far as the dasher, BRA or any variant of the the BR case goes, if tuned properly, damn tough to beat in any condition. I can get 10 shots off in 19 seconds and there’s others who are faster. The 30’s have a higher BC but the 6mm’s are faster. In ideal conditions, dashers and 6mm variants can’t be beat.