OK, I bought a lot of it & it turned up last weekend:
At 300m it out shot the ADI 168gn SMK rounds I've been using.
Sealed annulus, '14' headstamp & unpolished case.
What was interesting was that many of the rounds have patches of tarnish on them. cartons & boxes look free of damage, humidity etc.
This normal for 7.62 FGM?
In any case, it shoots better than existing round & I now have a few years worth.