So, sorry about not commenting and updating in awhile, but I doubt anyone even noticed. :-D
Anywho about the title, and this might be old and pointless, but I found a little something:


It says "Out of a ..." pretty clearly and then I obviously figure "ammo" then below it says "Pres ..." which is most likely "Press something to reload".

I dunno I thought it was pretty cool to find anyway.