Got to the range again yesterday. I shortened col to 3.295 from 3.33 and loaded 61.0gr and 61.5gr of RL26. The load using 61.5gr put five shots into a .5in group and passed through the chrony at 3115fps. The other load not so great. Again, the bullet of choice is the Hornady 140gr BTSP. Primer used is CCI 250 and brass is Imperial. No flattened primers or stiff bolt. I'm happy with that and will leave as is. I started at 58.5gr RL26 and worked up.
