HF Date Code 86 ( number position of letters of alphabet) of Chartered Industries Singapore (Name has since Changed).
o 79 o 308W Sellier & Bellot, post 1970s export 7,62 FMJ ammo, corrosive, berdan primed. very common with 1980s dates in Australia ( 1978 and 79 were usually marked “ZV” (Zbrojovka Vlasim" ( Asrenal Vlasim, which is "S&B, Vlashim, Czechoslovakia ( now Czech Republic).
RA 66 Special Contract Remington Arms 7,62 tracer for ADI…Footscray never managed to make succesful tracer ammo. Colour of seals has no significance, tip colour Orange signifies Type of tracer.
OFV 82 M80 7,62 Ordnance Factory Varangoan, India, set up by Olin (Winchester) for Indian Gi\ove.
Green tip and red tip are common weather seals for Long star Blanksrnment. Cartridge reflects US M80 Loading
(148 grain projectile)
FNM 80-66 Nato : FNM Portugal, lot 66, 1980, mostly nato contract ammo for Germany ( lot of it surplussed in 1996 etc, under the “15 year rule”. Red tip, with double cannalure, Tracer
LOong blank, L10A1 type, If marked "RA probably Raufoss Arsenal, Norway< on contract for Radway Green, the British suppliers to the british Army ( and Australia from time to time.)
Green tips and Red/purplish tips are common lacquer seals for Long star crimp blanks ( I have both colours in RG 66 and RG 64 L10A1 Blanks, which we use in quantity for Movies.
Obviously you are a newbie to 7,62 collecting. Welcome to this board.
Regards, Doc AV