The DEVA (German firearms research and proof testing organization) reloading manual lists the 8X57IR as having a maximum gas pressure of 3200 bar, which translates into roughly 46,412 lb./sq.in.

The only load they list with American components is the 196 grain RWS bullet with 49 grains of 4064 in an RWS case with CCI 200 primer at maximum pressure. They also list 48 grains of Norma 202 or 50 grains of VitaVuori N 140 with the same weight Norma bullet, also at maximum pressure.