Thats incorrect and has been proven many times before. The K98 barrel is shorter and the bullets have much more bullet drop.
I will see if i can find my Gun target cards again, where i matched my Mosin nagant against my mates K98k. my shots landed in a 95mm centre while my round with the k98 110mm group.
That was at 300 meters.
Superior build quality? The German mausers are the WORST constructed of all mausers. This came from somebody i visited, who has EVERY mauser model of every country. And he goes shooting with each and every single one of them. When being showed his target cards and groups, the Gewehr 98 performed very nicely, but the K98 had the worst grouping of them all. He is very mauser biased, but he admited himself that when it comes to accuracy, he preferred any other mauser then a K98 and even would dare to take a Mosin nagant.
Even GERMAN snipers preferred the Russian mosin nagant sniper rifles. The Zeiss optics of the K98 where ftw, but the PU scope of the russians was actually pretty good aswel, and went together with the mosin nagant like a bar with beer
The only advantage the K98 has over the mosin nagant, is the handier size, The easier loading of a stripper clip(It sometimes goes tricky with Mosin nagant) and that 7.92x57mm ammo in WW2 wassent as corrosive as the russian ones(Meaning you would have to clean your mosin a bit more then the K98)
However, technicaly, the K98 is a carbine. In the same way as a Carbine as a Lee enfield SMLE and Schmidt rubin K31. The Carbines of Russia where of the same model size as the Mannlicher types, like the Steyr mannlicher M95,Italian carcano's and French berthier carbines.
These where much smaller and handier then K98, but had a barrel of around 450mm compared to 600mm of the K98. The diffrence in long range shooting beyond 400 meter is much and much bigger. Clearly making the K98 better.
ooh my...look at the long post, anyway if you wanna discuss this further with me, feel free to add me on steam=theta123
I would happily discuss it with you