That's not too bad with just about 4.5 grains difference in 62 gr. LC rounds with different year cases. The 62 grain bullets can vary a grain or a little more while cases can vary as much as a grain or two especially between years. Powder charges while supposed to be identical can vary a tenth or two also. Cases trimmed a few thousandths longer or shorter can effect weight by nearly that much. So I think that's not too bad and not to be concerned with.
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