M16 rifle - M16 rifle

...However, the 7.62mm bullets were not necessarily satisfactory, as they had more lethal power than necessary, were heavy to carry, and had a large recoil and were uncomfortable to fire. After the effectiveness of the 5.56mm caliber was confirmed by the use of the 5.56mm M16 rifle (USA) in the Vietnam War and the 5.56mm Galil assault rifle (Israel), other NATO countries developed 5.56mm rifles one after another, and the Soviet Union developed and equipped the 5.45mm caliber AK74 and AKS74 rifles. In Japan, since the introduction of firearms in 1543 (Tenbun 12), the early modern group tactics of using many firearms were established in a short time, and foot soldiers and rifle units were formed, and the Oda army in the Battle of Nagashino (1575) used 3,000 guns. ...

*Some of the terminology used to refer to the "M16 rifle" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…しかし7.62mm弾は必要以上の殺傷力を有し，携行するのに重く，射撃するのに反動が大きく快適でないなど，必ずしも満足なものではなかった。ベトナム戦争で5.56mm口径のM16小銃(アメリカ)が，また中東戦争で同じく口径5.56mmのガリル突撃銃(イスラエル)が使用され，5.56mm口径の有効性が確認されてから，他のNATO諸国でも次々に5.56mm小銃が開発され，ソ連でも5.45mm口径のAK74およびAKS74小銃が開発･装備された。　日本においては，1543年(天文12)の鉄砲伝来以来，わずかの間に多数の鉄砲を使用する近世集団戦術が確立して足軽鉄砲隊が編成され，長篠の戦(1575)の織田軍は3000梃を使用するまでになった。…

※「M16 小銃」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