Quote:
Originally Posted by elkhunter11
Box to box is not the same as round to round. Different boxes, may be from different lot numbers, the lot number is usually stamped somewhere on the box. All ammunition in the same box, should be from the same lot number. The variation from lot to lot usually isn't great, but I have seen significant differences in some cases, which is why I would purchase several boxes from the same lot number, if I was to use factory ammunition.
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All very true but in the event that rounds of different lot numbers got combined, one way or another (I once bought a box of Hornady amo that had 5 rounds of PMC in it, mix ups happen), its possible that one could see bigger velocity variations.