I picked up several hundred of these bullets about 15 years ago at an estate sale. These defiantly pre date bar codes, Not sure if Remington always used the name core lokt, or if these date prior to that. I am wondering what cartridge Remington intended these bullets to be loaded in? Thinking that most Hunting calibers call for 150gr and heavier, they are also 308 dia so I would think that rules out 7.62X39. Any information on age of packaging, intended cartridge, were they a good bullet would be much appreciated.