Headstamp

Article summary

A headstamp is the markings on the bottom of a cartridge case designed for a firearm. It usually tells who manufactured the case. If it is a civilian case it often also tells the caliber: if it is military, the year of manufacture is often added. , in Independence, Missouri, USA. The symbol on this headstamp means it meets NATO specifications. The headstamp is punched into the base of the cartridge during manufacture. A resource for identifying where the ammunition originated can be found at Cartridge Collectors.

Key claims

1. date of death: 1912 — source: Wikipedia · confidence 0.95
2. date of death: 1987 — source: Wikipedia · confidence 0.95
3. date of formation: 1910 — source: Wikipedia · confidence 0.95
4. date of formation: 1957 — source: Wikipedia · confidence 0.95
5. date of foundation: 2014 — source: Wikipedia · confidence 0.95

Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. The record states that the date of death is "1912". What evidence would count against this claim?
3. The record states that the date of death is "1987". What evidence would count against this claim?
4. The record states that the date of formation is "1910". What evidence would count against this claim?
5. The record states that the date of formation is "1957". What evidence would count against this claim?
6. The record states that the date of foundation is "2014". What evidence would count against this claim?
7. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
8. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1362071629