The Model 95/30 is a very nice rifle and the straight-pull acton makes it very fast.  The 95 is loaded from a 5-round en bloc clip -- like the U.S. M1 Garand rifle -- that stays in the action while firing the five rounds.  That is, the clip holds and positions the rounds for feeding by the follower.  On the last shot, it falls out the bottom of the rifle and you're ready to reload.

 

It may take some scrounging to find ammo, but the Steyr is a very will finished rifle that has all the old world's craftsmanship of the turn of the 20th century.  Most Steyrs are in excellent shape.  Do some scrounging around at gun shows and on the internet and you'll find ammo.  The 30's and 40's Hungarian has a pretty good reputation for functioning.  The German production stuff is mostly good and usually comes with the 5-round clips.  If you can't get the ammo with clips, there are several places that sell them.

 

The Model 91/30 Mosin-Nagant is more common a rifle and the 7.62x54R ammunition is easier to find.  However, the M-N is pretty clunky in comparison to the Steyr.  The M-N is superior because, unlike the Steyr, it does not need an en block clip to feed its 5 rounds from the magazine.