Since there's probably many of us with old bolt actions in these calibers, lets' see some data out there for them.
My loads:
<span style="font-weight: bold">7.62x54R</span>
147 FMJBT mil-surp
55 grains BLC-2
Seated to 3.030"
S&B brass, neck resized only
CCI LR primer
Velocity ~ 2900 fps...