Write that lot number down. A different lot maybe tighter or just the opposite. With my
grandsons CZ-457, We tested Tenex, SK rifle match, RWS R-50 and Remington Target.
The Tenex shot larger then yours and the R-50 much tighter. Surprisingly, the SK shot
no better then the Remington Target and with terrible one inch groups. I ordered in 2
different lots of Eley black box and 2 differing lots of R-50.....For what it's worth....CCI
Mini Mags also shot real tight with some Wolf Match Extra. But that was after a major
rim sort. The Wolf was throwing 1/2" fliers before the sort. Cut that in half. It's not that
the rabbit holed is getting deeper but just adding another one.....

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