Hi guys,
I am no expert in Mosin-Nagant (+variants) cartridges, but can give a quick translation help:
AV 11 & A 0287 = most likely Finnish infantry cartridge codes & batch numbers(?)
15 kpl (kappaletta) = 15 pcs
7,62 kiv patr (kiväärin patruunoita) = rifle cartridges
Ilman siteitä = without stripper clips
Luoti: D-ps-sy (panssari - sytytys) = Bullet: D-bullet (not sure about this one though), armour piercing, incendiary
Hylsy: Rautainen = Casing: Iron
Alkuperä: Venäläinen = Origin: Russian
Tarkastettu: 24.5.77 = Inspected: 24.5.1977
Cosmoline seems to have it correct