I have just bought a 1950 .300 99.
If it had had a box through it I would be surprised, no crack..condition almost new, two faint marks on left receiver(not scratches) and one line in stock,depression, everything else almost as new, shiny brass mag, bright as if just made, no drilling for mounts, never even had sling screws fitted.
I wonder what percentage of them develop one, almost a bit worried about firing the damn thing now, I will always be looking.
