Because that's very common to all ramrods with bone tips - the barrel needed cleaning out the barrel now and then, even with better quality arms. The ramrod of your puffer should be equally equipped.
The Maucher ivory carvings and guns are in the Städtisches Museum Schwäbisch Gmünd:
http://www.schwaebisch-gmuend.de/60.php
Please look also here:
http://www.beyars.com/de_verbeinunge...n-michael.html
and for the 1992 catalog of the Mauchers' works:
Angelika Ehmer:
Die Maucher. Eine Kunsthandwerkerfamilie des 17. Jahrhunderts aus Schwäbisch Gmünd. Hg. vom Stadtarchiv Schwäbisch Gmünd. Einhorn-Verlag Eduard Dietenberger GmbH: Schwäbisch Gmünd, 1992. 237 S. mit 255 Abb.
and:
http://naxos.bsz-bw.de/rekla/showData.php?meta_id=54
Best from Lower Bavaria,
Michael