Denshi Jisho — Online Japanese dictionary

Found 5 sentences.

その暴発した The gun went off by accident.
暴発してしまった The gun went off by accident.
掃除していたら突然暴発してしまった The gun suddenly went off when I was cleaning it.
鉄砲掃除していたら暴発し、もう少しで当たるところだった The gun went off while he was cleaning it, and the bullet almost struck his wife.
つまりいくつかの暴発例えば落とされた防ぐために優れた安全機構持っていますそうでない多いのです In short some guns have excellent security systems to prevent accidental firing (e.g. when dropped), others don't.