# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/p-o-ackley
# Generated: 2026-08-13T17:55:17.015Z

schema: https://schema.org/Person
url: "https://fame.am/person/p-o-ackley"
name: "P.O. Ackley"
slug: "p-o-ackley"
description: "Parker Otto Ackley was an American gunsmith, barrel maker, author, columnist, and wildcat cartridge developer. The Ackley Improved family of wildcat cartridges are designed to be easily made by rechambering existing firearms, and fireforming the ammunition to decrease body taper and increase shoulder angle, resulting in a higher case capacity. Ackley improved not only standard cartridges, but also other popular wildcats, and was the first to create a .17 caliber (4.5 mm) centerfire cartridge."
tagline: "Gunsmith, author and columnist (1903-1989)"
image: "https://upload.wikimedia.org/wikipedia/en/c/c9/P.O._Ackley.jpg"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
birthDate: "1903-05-25"
deathDate: "1989-08-23"
livingStatus: "DECEASED"
scores:
  popularity:           44.33
  momentum:             0
  historical:           5.909722666666667
  currentAttention:     0
  sourceConfidence:     35
  profileCompleteness:  50
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://es.wikipedia.org/wiki/P.O._Ackley"
    title: "P.O. Ackley"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%A8._%D8%A3%D9%88._%D8%A3%D9%83%D9%84%D9%8A"
    title: "ب. أو. أكلي"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/P._O._Ackley"
    title: "P. O. Ackley"
    type:  "WIKIPEDIA"
  - url: "https://uk.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%BA%D0%B5%D1%80_%D0%9E%D1%82%D1%82%D0%BE_%D0%95%D0%BA%D0%BB%D1%96"
    title: "Паркер Отто Еклі"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Parker_Otto_Ackley"
    title: "Parker Otto Ackley"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/P._O._Ackley"
    title: "P. O. Ackley"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q7117060"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump