7.62 NATO No4 barrels

[tbonesmith]

I've had a couple of AX marked barrel (7.62 No4's) with the same long shank that I believe came from Lithgow SAF they were heavy profile. And I had a standard profile No4 7.62 with the long shank that came from Lithgow, and it came unused with a couple of washers, .070" and .004" if I remember correctly. I am pretty sure that was 2 letter marked