It goes bang quite well now....

55° with 0 windspeeds. My scope of choice is the Nikko Stirling Gold Crown 4-12×40. Using the new and unfired Starline brass it was intresting to note that after being fired, the cases had to expand almost .0010" to fill in the chamber space. Even with the rifle properly headspaced, I still had 1 case rupture. Regardless of that one hiccup, the rifle itself performed exceptionally and produced an averaged spread of 2.5" both laterally and horizontally at 200 yards so, I think I am good to go now...