In my Bushmaster 9 twist 25.3 grs Varget, WW case, CCI BR-4, 69 gr Sierra MK, OAL 2.260 and I use a Lee Factory Crimp Die. Very accurate load.
26.2 grs Varget, LC case, Wolf Mag primer, 52 gr Sierra MK, OAL 2.232, Lee Factory Crimp Die.
26.0 grs Varget, LC case, Wolf Mag Primer, 55 gr Sierra bltz, OAL 2.250, Lee Factory Crimp Die.
All are accurate in my rifle.