I received some of this Norma .223 Tactical ammo recently. It is just typical 55gr FMJ in 20rd boxes, but two things are interesting.
For one thing, there are no proof house marks of any kind shown anywhere.
Another thing is the headstamp. All of the cases show (or try to show) two pairs of dots at the 3 o-clock, and 9 o-clock positions, but they are off-kilter some of the time and are skewed around the lettering of the headstamp, or else are weak strikes some of the time. The headstamps also all seem to show a single abrasion smear on the edge of the rim at random locations around the edge.