>>Laborován speciální střelou s hlinikovou kuklou 5.0 g, Vo 1130 m/s, Eo 3200 J. <<

I have it on good authority from a mechanic that this text means:

Loaded with a Spezial Bullet w/ an Aluminum Jacket - 5,0 grammes, Velocity 1130 m/s, Energy 3200 Jules.

Now this is for the 5,6X61 vom Hofe Super Expreß without a R. Not sure how it applies to the 5,6X61R Super Expreß with a R¿¿¿

Hochachtungsvoll,

Raimey
rse