I'm curious to see what markings are on the standard barrels.
Now I know I should have pulled the trigger on a heavy. Oh well
Standard Profile GI Barrels should have markings like this ( Dates and heat codes will change ) but the drawing number ( 7790190 ) is used for all standard weight chrome plated USGI barrels
H-R 7790190 8-61-T ------- Harrington & Richardson
TRW 7790190 12-63 BR ------ TRW
Winchester – 7790190 – JUL -63-39R ------ Winchester
SAK - 7790190 - 2-69-1-6845 ------ Saco Lowell
SA - 7790190 8-67 BU36 ------ Springfield Armoury
Other match barrels may have a marking similar to SAK-7791382-3-76-8098240 NM