I researched old Austrian hunting magazines a bit further and it seems that Joh. Sigott of Ferlach advertised his Drall-Rifled-Bohrung from about 1903 till WWI. His early advertisements show only shot pattern, then also a blunt bullet, and finally shot pattern and the Minie type bullet. No rifling type is specified, but maybe, or rather likely, it was modified along the years as well.

With kind regards,
Jani

Last edited by montenegrin; 06/23/14 12:27 AM.