The chrome knurled cylinder had the caliber engraved on it, and it should still be there unless someone wore it off or ground it down. Read it to us again, please.
The 065 is an indicator of the volume of the dipper. Newer ones (yellow) are actually calibrated in cubic centimeters. Red ones (if I recall correctly) were calibrated in cubic inches (in decimal fractions, of course). I believe the black ones must be the oldest and if I am informed correctly, the numbers are not dimensional at all, but simply indicate which dipper it is. Lee has tables that purport to tell you how much weight of powder (you have to know which powder you are dispensing, of course, as each powder has different density). But very few people trust the tables without a scale.
You will need a scale to be certain of how much powder you are using. Do not skip the scale.
I have the Lee Loader for almost every caliber I load. Don't use them much, as a press is so much easier and quieter. Using the Lee Loader means at least six whacks of a mallet (do not use a hammer, use a wood, rawhide, plastic, brass or hard rubber mallet) to load each cartridge. It gets noisy and anyone watching is bound to be unnerved by the image of someone banging away on live ammunition. But despite the image, it is safe. Wear eye protection anyway and maybe a glove.
Good luck. Have fun. Be safe, always, all ways.
Thanks for asking our advice.
Lost Sheep