Of course, this is just my opinion, but I would NOT shoot that original ammo.  First of all, the brass does not hold up well over time and most of the pre-WW1 ammo could have cracks in the cases, which would lead to damaged and unpredictable powder charges... a dangerous situation.  Secondly, the primers used in ammo from earlier than 1950 are corrosive, which I personally would avoid (although I religiously clean my rifles immediately after a range trip or match). 

Your best bet would be to obtain some factory Remington 180 gr Core Lokt ammo... or get some brass from Graf & Sons and load your own. 

Just want you to be safe!