Quote:
Originally Posted by OP
...finished 30-06 round should be 3.34" and the internet seems to agree so that's what I've been
reloading to but I bought a box of new 30-06 rounds and they are noticeably shorter. They
measured 3.19", a difference of 0.15" seemed significant.
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And who was the manufacturer pray tell... Hornady?
Assuming so, it is based on [the] very specific bullet shape peculiar to Hornady bullets in general (very long shank, very short ogive roll-over). Hornady loadbooks take this ogive/OAL into account.