Loadbooks USA the complete reloading manual for the .257 Roberts , 2016Latest edition, 75 pages, This manual features
1872Loads, 57 bullet designs, 63 different powders. Data is comprised from,
Hornady
Nosler
Sierra
Speer
Lyman
RCBS
Hodgdon Powders
Accurate Arms Powders
Alliant Powders
IMR Powders
Winchester Powders
Barnes
Swift