Interarms Mark X,
Those were pretty good actions. Not something that most would build a full house custom on but nice none the less. Some say that they were built off of the old tooling for the Belgium FN actions which were very good actions. They are a little more polished than the FN's though, which isn't a good thing. The rifle was available from the standard size cartridges clear up to the 375 H&H. There was also a mini mark X but it wasn't the same action, more like a Sako. The Mark X was a controlled round feeding action, like the Mausers that it was copied from.
It's not really right to call it a Mauser action, a 98 would be more accurate. Mauser actions were built by Mauser, the 98 action was built by lots of different companies. The Mark X came from Yugoslovia, which was once Chezckoslovokia, (hope the spelling is right :lol: ). They made the vz 24 thats the rage right now for custom guns.
You have a great gun, much better than most new guns manufactured today.
It was manufactured by Zastava, should say so on the gun some where.