Jisho

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Noun
1. recoilless rifle; recoilless gun
Wikipedia definition
2. Recoilless rifleA recoilless rifle (RCLR) or recoilless gun is a lightweight weapon that fires a heavier projectile that would be impractical to fire from a recoiling weapon of comparable size. Technically, only devices that use a rifled barrel are recoilless rifles. Smoothbore variants are recoilless guns. This distinction is often lost, and both are often called recoilless rifles.
Read “Recoilless rifle” on English Wikipedia
Read “無反動砲” on Japanese Wikipedia
Read “Recoilless rifle” on DBpedia

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