I just want to get started on loading 120 grains sierra match kings for my shoulder which is getting worse.I need the better selection of powder and primer.I have a 26" barrel,shilen select match,savage platform,1in8 twist. It is in a bvss stock and bedded with a rifle basix sav2 trigger. I tried on big calibers but a couple guys went off on a tangent about the 123 amax.I realize it is a similar bullet,but looking to anyone who has used the combo in the past.I have alittle nosler brass left and lots of remmy brass to work with.It is a no turn neck.Thanks to all that can help. Jon