I don't know about the mini Mauser. I have 2 of Zastava Model CZ-99 .22's. They exported them under other brand names also. Charles Daily, Remington Model 5 etc.
Both of mine shoot extremely well. Shooting this weekend at a 24HCF match, I shot a group @ 150 yards that was right at One inch ( 1" ) in windy conditions.
I'll try to post a picture here in a little while. Picture added.