"7.92x57,8x57, 8mm" Mauser are all the same thing.
This rifle was also chambered in 7X57 and 7.65X53. But the vast majority will be encountered in common 8mm Mauser.
My shooting buddy has one, in good condition - a bit banged up but not bad. It's a fair shooter. As with any rifle of this vintage, get a 'smith to check it over before shooting.
What may be further clouding the issue is that Brno (Zbrojovka Brno) has also manufactured sporting rifles based on the Mauser 98 pattern for many decades. If you include the sporter Brno 98s, Brno has made rifles in virtually every caliber you can think of, including many of the "American" calibers like .30-06.
thanks for the input guys, the reason i ask i got one for a present from my wife, the clerk sold her 7.9x54 ammo for itl. i know it will function in my turkish mauser, but i dont think so in this czech rifle.
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