OK, here's what I know or think I know. The 98K, the rifle used by German troops and other Axis powers before and during WWII was a 'intermediate length Mauser 98 action in 8mm (actually, 7.92x57mm). This rifle is referred to as the K or Karibiner Model as it was shortened from the 29" bbl of WWI rifles to the 23" barrel for WWII along with some stock changes. These 98Ks also have bent bolts, and probably a few other cosmetic changes. These rifles were perfectly designed to handle the 57mm length rounds such as th 6.5x57, 7x57, 8x57, 9.3x57, etc. They can also handle the 62mm length cartridges like the 30-06 but not with the same ease and magazine capability of the shorter 57mm round. The 51mm round like the 308 often gives these rifles cycling fits as the round just seems to be too short to cycle either rapidly or effectively. The 55mm length round of the Swedish M96/38 Mausers cycles just fine in the intermediate actions. Apparently, 2mm shorter in length will work much better than 6mm shorter in length through these actions.
The long(er) Model 98 action was built for the longer German hunting cartridges of the time, like the 8x68, 9x63s, 9.3x74, or the heavy British African cartridges.
As for the Yugo Mausers: The VZ24 is a intermediate length 98 Mauser, same as the 98K action length and designed for the 8mm round. Any of its variations that went through the Preduze 44 ( Factory #44 actually, either the Brno or Zastava factory, or maybe they are the same) are the same length action as the 98K. Straight bolt handles and different stocks but the same action and problably the smoothest of all wartime guns. The VZs include the VZ24, the VZ24/47 (refurbished by Preduze 44 in 1947) and the VZ/CZ24/57 (refurbished in 1957). Refurbishing means new barrels, newly fitted bolts and new mil-spec stocks with any number of different sling swivels.
The M48/48A is a 98 action that was also made at the Preduze 44, but is a slightly shorter action length than the VZ24 or 98K (I believe) but perfectly designed for the57mm round and probably the easiest handling '98' rifle. I have both a VZ/CZ24/57 and a 48A and in comparison you can see the differences, small but significant. Trigger assemblies may interchange but the bolts won't. I also have a straight (bubba-ed) VZ24 that is the same as the VZ/CZ refurb and both those rifles have the same length action as my Husqvarna (Swedish) made 98 sporter.
The M96/38 Swedish Mauser is about the same action length as the M48/48A and is designed around the 55mm case length 6.5mm Swedish Mauser round. Both are simply excellent rifles. Both are Mauser actions, with the Swede being a 96 and the Yugo a 98.
Just like Craig said, once you start it is hard to get enough of them. I prefer the Mauser over the Springfield, which was pretty much a copy, any day. I like my Winchesters because they feel like a Mauser to me. Two of my immediate 'go to' sporters are my M38 Swede in 6.5 and my Swedish 98 in 8, unless I'm using a lever action.....