You are in lala land with that.
Military surplus carcanos were junk then and they are junk now.
You can confuse them with african safari rifles if you want, but they are still junk.
You can still buy them for 25 dollars.
Admit that you've never owned or fired one.
I'll take a dozen. Where and when?
I've seen them in Shotgun News for as low as 3 for $69.95, non-shooting statement required. They are not a bad little rifle, I just have problems anyone using a scope getting off that many rounds *accurately* in that time span. Oswald was also a Marine.
If one understand Marine Corp base training, then they would think he would have used a M-1 Garand or a Star Gauge '03 Springfield.