.30 Carbine with star in headstamp

This is a headstamp of .30 Carbine Ball cartridge
What does mean star on 3 o’clock?

The star was used by Winchester in 1944 and 1945 to indicate a new draw process developed by them in place of the standard draw. If I remember correctly they went from a 5-draw to a 4-draw process.

Thank you!