{
  "annotation_id": "38f1daf9-aaa1-474e-b5cb-80385c927607",
  "date_created": "2026-03-02T18:01:03.873000Z",
  "date_modified": "2026-03-02T18:01:03.873000Z",
  "file_hash": "04f9b82b8b25bff7752acb4d09d030284b65e2bc3b77ed9d97ae88687d718dc1",
  "private": false,
  "record": {
    "abstract": "This article describes a simple method for using a PC soundcard to accurately\nmeasure bullet velocity. The method involves placing the microphone within a\nfoot of the muzzle and firing at a steel target between 50 and 100 yards away.\nThe time of flight for the bullet is simply the recorded time between muzzle\nblast and sound of the bullet hitting the target minus the time it takes the\nsound to return from the target to the microphone. The average bullet velocity\nis simply the distance from the muzzle to the target divided by the time of\nflight of the bullet. This method can also be applied to measurement of\npaintball velocities.",
    "arxiv_id": "physics/0601102",
    "authors": [
      "Michael Courtney",
      "Brian Edwards"
    ],
    "categories": [
      "physics.ed-ph",
      "physics.pop-ph"
    ],
    "title": "Measuring Bullet Velocity with a PC Soundcard",
    "url": "https://arxiv.org/abs/physics/0601102"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b7fb3753-9d7c-408b-a4e1-8e5781973fd5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}