I shot quite a bit of Malaysian 7.62x51mm made in the 1980's through a M1A and a few hundred rounds of it through my RRA LAR-8. It consistently shot sub 8" groups at 300 yards out of the M1A using iron sights. The LAR-8, equipped with a fixed 4 power scope, shot 3" or better at 300 yards most of the time. A bad group with the LAR-8 at 300 yards was under 4-1/2".

For comparison, group sizes with PPU 146g FMJ were double that size at 300 yards. Reloads tailored for both rifles did not group much better than the 1980's vintage Malaysian.