I just cast some .462 500gr slugs for a 45-90

The slugs came out at .465ish when I went to size them to .460 I just about broke my Star sizer.

They are close to pure lead and I did not quench them. I air cooled them and tried sizing them the same day.

My question is should I get another sizing die a little bit larger and size them twice or is there a better quicker way.

Any advice will be appreciated