Re: 243 with 115 dtac loads
I shoot the same load through my Scalpel and Nighthawk in 243. The Scalpel has a 26" krieger. The nighthawk has a 26" Broughton. They both shoot this load:
Lapua Case
47.2 grains of H-1000 with a pointed DTAC at 2.77, Fed 210.
You can also try bumping that up to 47.5 for a little more speed.
Or use, RL-25 at the same rate, but I pefer the Temperature insensitivity of the H-1000.
Hope it helps