About Aaron

Hello, my name is Aaron Newcomer. I am a writer, photographer and researcher. This website primarily details my research and photographs related to the Lefaucheux pinfire system; pinfire guns, pinfire cartridges and other early firearms. Please take a look around and learn about the role they played in shaping modern guns and ammunition.

I run the St. Louis International Cartridge Show which is the largest ammunition show in the world featuring hundreds of tables and visitors from many countries including collectors & professionals in the military and forensics sectors. Cartridge seminars, meetings, and auctions are held here every year.

More info on this show can be found at: https://CartridgeShow.com or https://www.facebook.com/CartridgeShow

I am on the board of directors of the International Ammunition Association where I focus on growing membership and engagement through an increased web and technology presence. The IAA was founded in 1955 to serve cartridge collectors and professionals in the areas of ammunition research and forensics.

I am a member of the following organizations:
International Ammunition Association
European Cartridge Research Association
Ohio Gun Collectors Association
Texas Gun Collectors Association
Alamo Antique Arms Collector’s Association
The Arms and Armour Society

Publications and Publicity

I have written articles and provided photographs for multiple publications.


Killing Vincent: The Man, The Myth, and The Murder

This book features various images of mine as well as some original research of mine related to pinfire cartridges. I was also able to supply Dr. Arenberg with hundreds of original-period 7mm pinfire cartridges to perform modern forensic testing to determine if the autopsy of Vincent van Gogh supports the narrative that van Gogh shot himself with a pinfire revolver.

Arenberg, I. Kaufman. Killing Vincent: The Man, the Myth, and the Murder. Nostradamus and the Three Maestros Productions, LLC, 2019. Print.

The Pinfire Page

The Pinfire Page was a recurring column I had in each issue of the bimonthly publication, The International Ammunition Journal. This compilation book combines together the first 5 years of my column, showcasing my research, images and other documents related to the pinfire system which was the first major breakthrough in modern ammunition.


This in-depth book covers the history of Italian military ammunition. Like most countries, pinfire cartridges and guns played a part in their early history. This book features multiple examples from my collection and images of mine of Italian military pinfire cartridges and boxes.

Taviani, Pierluigi, and Carlo Zambon. Munizioni Militari D’Italia, 1861-1946 = Military Ammunitions of Italy. Italy: Edizioni TZ, 2020. Print.


International Ammunition Association Journal
Newcomer, A. (2013). The International Ammunition Association Journal, (492 – 529): Print.
The Pinfire Page in each journal issue from Issue 492, July/August 2013 – Issue 529, September/October 2019

Molans, Paul D. “Tube Primer or Pinfire Primer – An Analysis of a Boché Aine Design.” International Ammunition Association Journal 525 (2019): 42-46. Print.
This article features some research, images and specimens from my collection.

Scandinavian Ammunition Research Association Bulletin
Newcomer, Aaron. “Cupfire-systemet.” Scandinavian Ammunition Research Association Bulletin December 2013 (2013). Print.
The Scandinavian Ammunition Research Association published my article on the cupfire system which was an early form of ammunition made to circumvent Rollin White and Smith & Wesson’s patents.publication title

Miniature Arms: The Journal of the Miniature Arms Collectors/Makers Society
Newcomer, Aaron. “2mm Pinfire Cartridges.” Miniature Arms: The Journal of the Miniature Arms Collectors/Makers Society Apr 2018 (2018). Print.

Research Publications

International Journal of Historical Archaeology
Williams, Blake C. M. “From Goose Drops to Spec Ops: A Pinfire Shotgun Shell from Fort York.” International Journal of Historical Archaeology, vol. 20, no. 4, 2016, pp. 720–729.


Sons of Guns, Season 2, Episode 15
Goettsche, Christopher, prod. “The Hogzilla Gun.” Sons of Guns. Discovery Channel. 4 Jan. 2012. Television.
This episode featured pinfire ammo provided by me. I recorded a phone segment with one of the cast members but the clip did not air.