![Found this 20mm shell casing in my late Grandpa's house. Can anyone help decipher what's written on it? (I want to know where/when it originated). : r/Firearms Found this 20mm shell casing in my late Grandpa's house. Can anyone help decipher what's written on it? (I want to know where/when it originated). : r/Firearms](https://b.thumbs.redditmedia.com/HG5D3nTXiQebrg9-UPuTHnQ_a4x7bRN92e24aHzT4Wo.jpg)
Found this 20mm shell casing in my late Grandpa's house. Can anyone help decipher what's written on it? (I want to know where/when it originated). : r/Firearms
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20x102 PGU-28B, an early variant? - General Ammunition Discussion - International Ammunition Association Web Forum
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Australian M103 (20x102) Cartridges - General Ammunition Discussion - International Ammunition Association Web Forum
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US made 20x102 HEI with black bars - General Ammunition Discussion - International Ammunition Association Web Forum
![Inert/ display - 20mm M103 round, brass case, blue painted steel projectile and alloy nose cone - Antique Armoury Inert/ display - 20mm M103 round, brass case, blue painted steel projectile and alloy nose cone - Antique Armoury](https://i0.wp.com/www.antiquearmoury.net/wp-content/uploads/2022/01/13371_2546519o.jpg?fit=1000%2C750&ssl=1)
Inert/ display - 20mm M103 round, brass case, blue painted steel projectile and alloy nose cone - Antique Armoury
The Canadian Gun Vault Inc. - CHECK THIS OUT!!!! WOW😳😳😳 I want to handload this!!! ******************************************************** #Repost @starlinebrass (@get_repost) ・・・ 😲 What do you think about this? 14.9mm SOP developed by ...
![20x102 APDS loads for Phalanx CIWS - General Ammunition Discussion - International Ammunition Association Web Forum 20x102 APDS loads for Phalanx CIWS - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/original/3X/7/c/7c808e595fee9aa5f7da60949544ec8db20116e6.jpeg)
20x102 APDS loads for Phalanx CIWS - General Ammunition Discussion - International Ammunition Association Web Forum
![Lesson from a 20MM Bullet Casing. From Defense to Decoration | by Shaun Holloway | Lessons from Ordinary | Medium Lesson from a 20MM Bullet Casing. From Defense to Decoration | by Shaun Holloway | Lessons from Ordinary | Medium](https://miro.medium.com/v2/resize:fit:1400/1*J602mIF2KorqeYJpLag-BQ.jpeg)