Mannlicher M1895 sniper rifle.
<a href="//commons.wikimedia.org/wiki/User:Thisisbossi" title="User:Thisisbossi">Andrew Bossi</a>
CC BY-SA 2.5
<a href="//commons.wikimedia.org/wiki/File:1626_-_Salzburg_-_Festung_Hohensalzburg_-_Repetier.JPG" title="File:1626 - Salzburg - Festung Hohensalzburg - Repetier.JPG">File:1626_-_Salzburg_-_Festung_Hohensalzburg_-_Repetier.JPG</a>