Drilling

[Tau]

Krupp in Essen was not a barrelmaker, at least not of small arms barrels, but a steelmaker. Krupp's barrel steels came in several grades and were the most renowned barrel steels in Germany. Other barrel steels were just as good, but Krupp had the "NAME!"

Then why is so many Drillings barrels stamped with the Krupp name?

[Axel E]

Then why is so many Drillings barrels stamped with the Krupp name?

Because it was good advertizing. As I wrote, barrels made of steel by Krupp were highly regarded by Germans. So gunmakers marked their guns, not only Drillings, this way. Just as computers now oftern are inscribed "INTEL inside".