Swedish Rolling Block

I ran across this rifle when an acquaintance showed me his new to him rifle.  It is a 6.5 X something which is the same as a 25-35.  It uses a little 85 grain 257 bullet in a bottleneck case.  The black powder load will be figured out when it warms up.

 The rifle is a # 1 military action which dates it to before 1875.  I don’t know how to tell if the extractor is rotary to linear but it might be either.  The #1 military has either.  The frame was 1 ¼ inches wide.  The action and the barrel have the same serial number but the block is different. 

 The military stock has been cut down to a half stock from the military full stock.  The Swedish armory brass disk is missing and the wood has been filled with another type or color of wood.