[BillM]

Your picture kind of sucks, so I'm guessing a little here. If it is a straight pull
action it might be:

1886 Austrian Mannlicher

http://www.militaryrifles.com/Austria/86Mann.htm

Bill

 

[BillM]

Is it a straight pull (back and forth) action or a conventional lift-back-forward-down bolt action?

Rough idea of the bore diameter? Under or over 1/2"?

Bill