I just tidied up my mates grandads rifle, brno zkk 600 7x57.
It has a tight chamber too. Factory Federal 7x57 is hard to chamber. We pulled the loads, bumped the shoulder back and upped the charge 2 grains to get decent velocity from it (was 2440fps and now 2650fps.)
I've set my mate up to handload for it using my gear now.
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