ダムダム弾[damudamudan] dum-dum ammunition
弾機[hatsujou] spring (e.g. coil, leaf)
パイプ爆弾[paipubakudan] pipe bomb
プラスチック爆弾[purasuchikkubakudan] plastic explosive
曳火弾[eikadan] tracer bullet

曳光弾[eikoudan] tracer bullet
円弾[endan] round shot
煙弾[endan] smoke bomb
核弾頭[kakudantou] nuclear warhead
核爆弾[kakubakudan] nuclear weapon

偉才[isai] genius
何才[nansai] how old?
画才[gasai] artistic talent
鬼才[kisai] wizard
賢才[kensai] man of ability

口才[kousai] clever speech
才覚[saikaku] ready wit
才学[saigaku] talent and education
才幹[saikan] ability
才器[saiki] talent