Does anyone have any experience with 6.5 SAUM, 153.5 Berger hybrid targets, especially out of a long action, extended COL. I have H1000, Retumbo, LRT, Magpro, H4831sc, Stab HD, US 869, 7828ssc and probably some other powders I am forgetting. What is everyone using for primers? Mag or large rifle? I have Hornady and prime brass. 24" M24 contour barrel. H1000 seems to be my magic powder in most magnums when it comes to accuracy. Looking to sling lead.