Practice ammunition - Enshudan

Japanese: 演習弾 - えんしゅうだん
Practice ammunition - Enshudan

...Depending on the assembly of these components, the amount of propellant, and the loading method, they are classified as fixed, semi-fixed, and detachable. For actual combat, there are high explosive, anti-tank, high explosive, adhesive, armor-piercing, smoke, and illumination rounds, while for training, there are blank, practice, and dummy rounds.
[Development of explosives]
In Europe, black powder began to be produced in the first half of the 14th century, and in the 15th century, advances in metal melting techniques led to the development of solid bronze barrels, and bullets made from forged wrought iron and then cast iron bullets replaced stone bullets.

*Some of the terminology that refers to "practice ammunition" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…これら構成部品の組みつけ,発射薬量の加減,装塡要領などによって,固定弾,半固定弾,分離装塡弾などに分けられる。実戦用には,榴弾,対戦車榴弾,粘着榴弾,徹甲弾,発煙弾,照明弾などがあり,訓練用には,空包,演習弾,擬製弾などがある。
[爆薬の発展]
 ヨーロッパでは14世紀前半ころには黒色火薬が製造されるようになり,15世紀に入ってから,金属溶解法などの進歩に伴って青銅製の一体砲身が生まれ,錬鉄を鍛造した弾丸,次いで鋳鉄製の弾丸が生まれて石の弾丸にとってかわった。…

※「演習弾」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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