7.62x54R headstamp with dot

This is the headstamp on an unremarkable CWS cased 7.62x54R. It has the yellow painted tip of a heavy ball loading. The paint looks a little heavier and maybe more of it than normal, but maybe not. I’ve compared the weight to the same headstamp without the dot and they are the same. The dot next to the date is the same height as the rest of the characters and looks (to me anyway) like it was done on purpose. Has anyone out there ever seen anything like this?

Does it say “60” on top?

Yes, 60 on top, 40 with a dot afterwards on bottom.