I just bought a few hundred rounds of 75 grain blue box for important practice.  I've got about 350 rounds from an older lot purchase.  Can I count on them shooting to the same POI?

Also, all of the boxes from both purchases have 10062A on one side flap.  On the other side flaps, there are two circles, 05 and 06 with 1-12 around them, presumably for dates.  There is also what appears to be a lot number bellow.  There are at least 4 or 5 different numbers on the various boxes.  What is the significance of this number and the 10062A?  Which is the lot number?

As those numbers look like they were printied when the boxes were printed they are probably no related to lot numbers.   The numbers inthe circles could be test patters to verufy the quality of the printing.  The other number could be the part number for the box itself.  If you look under the flap on the one endo of the box there is a seconday stamped number that is probably the lot number.  I just got two boxes of 75 grain and two bosex of 77 grain from them and, except for the secondary stampings,  they are identical.

I work in the printing industry so that's my story and I am sticking to it.   If there is anybody on this boars who works in prepress and works with Creo (now Kodak) equipment, I'm your hardware service person.