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・ XM1111 Mid-Range Munition
・ XM1128
・ XM1156 Precision Guidance Kit
・ XM1216 Small Unmanned Ground Vehicle
・ XM1219 Armed Robotic Vehicle
・ XM133 Minigun
・ XM148 grenade launcher
・ XM174 grenade launcher
・ XM2001 Crusader
・ XM214 Microgun
・ XM22
・ XM25
・ XM25 CDTE
・ XM29 OICW
・ XM2go
XM301
・ XM307 Advanced Crew Served Weapon
・ XM312
・ XM395 Precision Guided Mortar Munition
・ XM501 Non-Line-of-Sight Launch System
・ XM70E2
・ XM8 rifle
・ XM800 Armored Reconnaissance Scout Vehicle
・ XM806
・ XMA
・ XMA (audio format)
・ XMail
・ Xmal Deutschland
・ Xman
・ Xmap


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XM301 : ウィキペディア英語版
XM301

The XM301 Cannon is an externally powered, three-barrel 20 mm Gatling gun made by General Dynamics for the U.S. Army.〔(【引用サイトリンク】title=XM301 20mm cannon )〕 Developed for use with the RAH-66 Comanche stealth helicopter, it is the world's lightest 20 mm Gatling cannon.〔(【引用サイトリンク】title=XM301 Spec Sheet )〕 The XM301 was designed to be a versatile and accurate lightweight cannon that could serve both an air-to-air and air-to-ground role.〔(【引用サイトリンク】title=XM-301/XM301 )〕 Development and manufacture of the XM301 was cancelled in 2004 along with its parent RAH-66 program.〔
==Description==
The XM301 is a lightweight, three-barrel version of the M61 Vulcan. It is externally powered, relying on the same power delivery system as the Vulcan. It fires M50 and PGU-series ammunition found in the Vulcan, as well as newer lightweight X1031/1032 aluminum-cased ammunition at either 750 or 1500 rounds per minute.〔 Designed for use in combat helicopters, the XM301 boasts a dispersion of 2.2 milliradians, making it accurate at long ranges.〔 The XM301 weighs 80.5 pounds, less than a third the weight of the Vulcan. It can hold 500 rounds of ammunition, and is able to be field-reloaded in 15 minutes.〔 The turret allows an aiming range of +15° to -45° in elevation and ±120° azimuth. It may be stored at +2° in elevation and 180° azimuth in order to reduce radar cross-section.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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