Accept no imitations! Buy only the bona-fide authorized original... .

The stuff was rather pricey, as well. The same 1939 catalog that listed these DWM 'imported rimless cartridges for Mannlicher Schoenauer rifles' at $5.00 to $6.50 USD per box of 20 (on stripper clips) also offered .30-'06 from Remington, Winchester, Western, or Peters in various bullet weights and profiles at $1.99 per box. Run those prices through this; Inflation Calculator for today's equivalent.

Having just done so and seeing that buyers then paid over $6.00 per round in today's money for 9.5X57 makes me feel a bit better about the cost of my reloads. Fresh Norma for the M1910, however, (when available) can run well in excess of that sum.

I have no idea what, if any, licensing fee Steyr may (or may not) have collected on MS proprietary cartridges. The ones listed above were DWM, a few other manufacturers also made them as Norma still does on occasion. Prvi Partisan offers 6.5X54 (feeds the M1900, M1903, Y1903 and variants) that can be found at reasonable prices: 6.5X54

Handloading and reloading were not unknown in the pre WW2 days, just perhaps not as popular as it is today.

From the 1939 Stoeger: