I'm loading for a new noveske 18" spr rifle with 77smk. Ive tried a little Tac and Varget. No luck yet. I know it shoots cause I got a .4" group with Hornady 55TAP. Anybody have a go to load with their Noveske chambers?
I use 24.5 gr of N-140 REM 7.5 primer in detailed LC brass (same year). I haven't shot it at 100 in a while, but I shot a 5-shot group at 400 last week that measured 1/2 moa. It runs about 2640-2660 fps and is a solid load to 600 yard.