Sorry , I don't have loads for those bullets . My twist is 7.5 and I use the 107 smks at this point for my 243 AI . ( sako action, Schneider bbl 26", smithed by George Gardner of GA Precision).
I use 41.6 grs. of H4350 in Lapua brass lit by a fed gm 210 primer to push the 107 smk aroung 3050 fps as reported by my Oehler 35 .
That load has given 1/3 moa at 300 yds and groups at 100 were as small as .187 . AND , before I see flames and worse attached to this thread I will add that those groups were shot by a " picker " who had no time constraints and was shooting in ideal conditions . Meaning that I dont think I could reproduce them with any regularity in a br comp . That being said I must point out that I /it has done so many times . I dont know if I still have some of the old targets but if so I will post them .
Jim B. [image]