8x50R "M.8 1937"

#1

Does “M” stand for Magdeburg or Mannlicher? Just a wild guess.
image

#2

Why should it be Magdeburg?

#3

I saw a different headstamp of this calibre and it said it was made in Magdeburg, so I guessed, sorry.

#4

Not that I am the one supposed to talk about but wasn’t Polte using “P” or “P M” rather than “M” only?

#5

This is a Hirtenberger contract for Italy. The “M.8” marking was also used on clips (picture by Peter):