Hunter works pretty good in my Creedmoor, and it likes 120 grain bullets. I force feed it 140s since they are more accurate at 600 yards though. I'd try some 123s, but I surely don't need 1000 of them.
I haven't tried 140s in my Swede, it really likes 120s too.
No. 7 shows Hunter max at 46.0 grains with the 123 CC. You can get better velocity with IMR 4350 (45.5 max). That is all I have shot in my Swede and it is very accurate, the muleys don't care for it much.
I shoot 123 A max in my 6.5 Grendel and 6.5x55 SE .
two different loads, but they shoot well. Since my 6.5x55 has 1:8 twist it shoots 140 VLD and 140 AB very accurate. I prefer 140 for deer and 100 gr for coyotes.
For 6.5x55 123 A max I used H4350. Also 120 gr BT or 120 gr sierra match king work well.
140 AB is my deer hunting round with Norma MRP 48 gr at 2650 fps.
Vodek