Remington 30 carbine

I recently bought some vintage Remington 30 carbine for a Ruger Blackhawk. The boxes are from 1964 to 1973. The lot prefix is L and i was hoping to pin down the exact year. Any help or info would be appreciated.

178953

178954

178955

Remington customer service number:
1-800-243-9700

Nobody outside the company knows nothing about lot numbers or their meanings.

Remington knows, but they will have to kill you if they tell you.

rc