So, full disclosure and not to Hy-Jack a post...
I loaded 20 (5) round groups with different powders and different bullets and set it 10 thousands off the lands. This is all a learning curve for me, so i'm going the slow route. I loaded my first five in some junk S&B Brass for sight in, then loaded a duplicate load in some re-sized Starline brass.
For reference, this is a 22" Tikka 243 "Lite" factory barrel, 108 ELD-M, CCI BR primer, 40 Gr of H4350 @ 100 yards. i got a rain shower right as i was firing the last shot so the target is soaked and wrinkled.
I averaged 2840, had a wide swing of 46 ES and an SD of 18. This was the very first string i shot (out of 21 test strings) and ended up with a 5 shot group of .71" at 100 yards.
I got to shoot 15 shots based on the weather and called it after that, but for the first string, i can't complain.