I have an older Hornady O.A.L. gage that I used on my Tikka 6.5. The OAL was 2.93 with a Hornady 140 ELD Match bullet touching the lands. The length of the factory load was 2.81. I tried various lengths including 2.92 OAL and generally saw no improvement but did load up some @ 2.83 to try as...