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He has it listed as an 8X57IR, however; it was made in 1938. Well after the introduction of the 8X57IS.

Can it be that even in 1938 the .318 rimmed was still being produced? Or, do you think that the rifle really is an 8x57IRS.

B.

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Most German 8 mm hunting rifles before WWII were made for the "J" or .318 calibers. This does not regard only the rimmed cartridges - you also have to be careful with bolt action rifles.
Only in 1939 with a new proof law there were clear regulations how to label ammunition and rifle barrels to avoid confusion, and the decision not to produce any new rifles using the "J" caliber.
While the rimless 8x57IS was quite old in 1939, the rimmed 8x57IRS was new.

So you have to be careful with any guns made before that time. Best to slug the barrels.

Fuhrmann

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