Hi Jim,

If these are tins of 500, I used to use these for 10m shooting. Early tins were white and grey, whilst later versions had more blue. The later versions were marked for pistol or rifle and the difference was purely down to weight. Pics of your tins would help to identify and age them. A good quality pellet and in my view, the benchmark for 10m shooting. Not sure if they have much collector value as they are not that old, but would estimate under £10 on the written description you have provided.

Regards,

John