Yes, the .445 is much longer than the .44 mag case, it extends into the throat of the cylinder so it has to be sized down to fit. .44 mag sizer is around .457, the throat part has to be around .430.

'Four legs good, two legs baaaad."
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"Jimmy, some of it's magic,
Some of it's tragic,
But I had a good life all the way."
(Jimmy Buffett)

SotG