How to properly format JSON?

Question

JSON

Good day.
There is such a table:

spoiler

link to google doc: https://docs.google.com/spreadsheets/d/1VK8AJQhfY6...
and i made this json doc

spoiler

{
  "caliber":
  {
    "caliber_name": "11,43x23",
    "name": ".45 FMJ",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  },
  {
    "caliber_name": "11,43x23",
    "name": ".45 RIP",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  }
}

I understand that this is not true, but how can I combine the data by caliber? given that there are a different number of calibers, for example: 7.62x54, 5.45x39, etc. in the example table indicated only 1 caliber

Answer 1

[
{
  "caliber": "11,43x23",
  "items": [
  {
    "name": ".45 FMJ",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  },
  {
    "name": ".45 RIP",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  }
  ]
},
{
  "caliber": "8,43x21",
  "items": [
  {
    "name": ".45 FMJ",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  },
  {
    "name": ".45 RIP",
    "damage": "72",
    "arm_pentra": "19",
    "arm_damage": "36%",
    "bullet_frag": "1%",
    "speed": "285",
    "ricochet": "7%"
  }
  ]
}
]