RE: 7.62x54
In factory ammo I recommend using Sellier & Bellot 180gr S.P.; good ammo and the brass is reloadable.
762mm- I'm just getting into reloading for my 91/30 and my M-44 so that bullet weight you recommended is one I'm gonna try, since I've had good results with the factory ammo in that weight.
PS- Could you post some of your load data? Would greatly appreciate it.
"Lord, make me fast and accurate."