Zeus .72 bullet size

So what is consensus on bullet diameter for the .72 Zeus?
I cast for a slug rifle so have the MP mould for full size "pellets", they run @ .732"
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As cast at 655 grains and should be fairly good weight wise for power.
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Round balls running @ 739" ish.
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Clocking in at roughly 590grains
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Now for my real question: Should i size (and make a correct sizer myself) or shoot as cast?

The rifle wont be here before tuesday so i have plenty of time :)
 
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