3450 руб.
Учебный патрон 30х165, ЗПУ-20, 30мм калибр, на базе ОФЗ (Training cartridge 30x165, ZPU-20, 30mm caliber, based on OFZ)
Site is in Russian, and I’m not sure on the laws of buying ammo or if you can from there. Also the ammo here is 30x165 and in game it is 30x160
$7
3D Printed OFZ Shell