My "point" is that Winchester .30-30's, your topic, were made from 1894 to 2006 - answering your question: "No such thing as Winchester .30-30 ?".
If you were referring to the .30-30 cartridge, that would be about the same story, as per your link.
"30 WINCHESTER SMOKELESS, .30 WINCHESTER, .30 W.C.F., .30-6-100, .30 Marlin,
.30-30 MARLIN SMOKELESS, .30-30 S., .30-30 W.C.F., .30-30 Win., .30 American (Federal case, small primer), DWM 543 (Germany), 7.62x51R (Europe)."
So I guess I don't get your point either.