[Aeroforce]

OK, I'll start with Hornady:

K27K07 Oct. 27, 2004
K07K14 Oct. 7, 2004
L22K27 Nov. 22, 2004
F12Q12 June 12, 2009

And some CCI:

H19K08 Aug. 19, 2004
J07K08 Sept. 7, 2004
H04K14 Aug. 4, 2004

Looks like I need to shoot up some 9 year old ammo.

So far, it appears that the first letter is the month.

Next two numbers are the day.

Next letter is the year.

Not sure about the next two digits, could be the machine???