File:R4HQA procured in Yugoslavia by USA Ordnance Corps.jpg


 * Box markings
 * From USA for mutual defense
 * Procured in Yugoslavia by Ordnance Corps United States Army
 * Ammunition for cannon with explosive projectiles
 * R4HQA
 * Lot E-RRI-1-9


 * Source
 * https://twitter.com/sahouraxo/status/814239258860863489
 * Трофейные залежи - Colonel Cassad, December 27, 2016
 * http://www.syrianews.cc/wp-content/uploads/2016/12/Aleppo-Weapons-depot-1.jpg
 * To the terrorists from the West: huge weapons depots discovered in Aleppo - Russian Spring exclusive, December 28, 2016 (photo, video).
 * Shows more ammunition from USA, Germany.


 * Video
 * Russian Sappers Discover US-Made Weapons in Aleppo in Militant Arms Cache - Sputnik, December 28, 2016
 * Weapons Manufactured In Europe Are Found In Aleppo
 * Российские сапёры нашли на бывшей базе боевиков в Алеппо оружие производства США - RT на русском, December 28, 2016

R4HQA

 * List of U.S. Army munitions by supply catalog designation - Wikipedia
 * ''The Ammunition Identification Code (AIC) was used by the US Army's Ordnance Corps from January, 1942 to 1958. It listed munitions and explosives (items from SNLs P, R, S, and T), items that were considered priority issue for soldiers in combat.
 * ''It used a code that had five parts.
 * The first character consisted of the item's SNL Group and was represented by its letter.
 * The second character indicated the sub-group and was represented by its number.
 * The third character represented the weapon or weapons that could use it and was represented by a letter.
 * The fourth character represented the type and model of ammunition (i.e., Training Blank, Ball, Armor-Piercing, Incendiary, Tracer, etc.), which differed from weapon to weapon, and was represented by a letter.
 * The fifth and last character detailed the packing method (Cartons, Bandoleers, or Belts / Links) and container type used (M1917 Rifle Ammunition Packing Box, M23 Ammo Crate, etc.) and was designated by a letter.
 * Class R4H (Ammunition for 81mm M29 or M1 Medium Mortar)

Prior sightings

 * Weapons seized from Division 16 by YPG near Bani Zeid - Uploaded July 30, 2016
 * Discussion on Reddit
 * Syria: US ammunition uncovered in 'Nusra-occupied Aleppo', army alleges - Ruptly TV, September 30, 2016