IVI 7.62mm Brass Question

[Freedom in theSkies]

I have a quantity of ex Canadian Military brass which is made by the national supplier SNC Lavalon, which I suppose would be the US equivilent of Lake City.
The question I have is; There is a little crosshair stamped on the rim case. Why?

 

[NuJudge]

That indicates it was originally manufactured and loaded under NATO supervision and standards.

Most that you will find today was fired in machineguns, so you will probably need to size the heck out of it.

CDD