Jeg ser at på min Trumpf Dural drilling er hagleløpene merket Blitz, og rifleløpet merket Spezial CRG. Det står litt på dette forumet: https://www.doublegunshop.com/forums/ubbthreads.php?ubb=printthread&Board=1&main=7004&type=thread
A 1964 Waffen-Frankonia catalog (The Hunter's Counsler) includes a chart giving specs on several steels. Included are 5 grades of Bohler steels; Blitz, Special, Special CRG, Antinit NG & Super Blitz. The Yield strength for these steels in KG/MM² are given respectfully as; 45, 65, 70, 70 & 100. If I have done my conversions correctly I get in Lbs/In²; 64076, 92467, 99580, 99580 & 142257. Again note these are "Yield" strengths, not ultimate. I would rate these steels as varying from Very Good to Absolutely Superb. One can of course only assume the specs remained fairly constant over the years for the same grade designation.