Considering the velocities and groups, which primer would you guys use? By the way these were fired round robin. The temp was stable all day. The next shot was not fired until the barrel was below 80 degrees right in front of the fore end. Edited to add: Rifle weighs 7 lb 7 oz. 24" barrel. I liked every hold as the shot fired. Edited to add: When you get old you call a Hammer Hunter 124 grainer a Sledgehammer 130 grainer.