[
  {
    "type": "item_group",
    "id": "ammo_can_300_full",
    "container-item": "ammo_can_30_300jhp_240",
    "items": [ { "group": "ammo_box_300", "count": 12 } ]
  },
  {
    "type": "item_group",
    "id": "ammo_can_300_part",
    "container-item": "ammo_can_30_300jhp_240",
    "items": [ { "group": "ammo_box_300", "count": [ 1, 10 ] } ]
  },
  {
    "type": "item_group",
    "id": "ammo_box_300",
    "container-item": "ammo_box_army_20_300wm",
    "items": [ { "item": "300_winmag", "count": 1, "charges-min": 20, "charges-max": 20 } ]
  }
]
