Yugo ammo has/had a 198 gr bullet.
I would try a 198-200 gr bullet in your rifle, though there's no guarantee that it will go the right way. Iwas shooting 170 gr bullets out of a persian long rifle- it was dead on at 100 and 200 yards, but when I switched to loading 200 gr bullets, it shot 6-7"high at 100.
I prefer to shoot heavier bullets in the 98s when practical. starting with the hornady 170 gr rn up to the 200 gr speer bullets. The groove diameters in these rifles is rarely .323, and usually closer to .325-.326" , longer bearign surface on heavier bullets helps with accuracy.