barrel bomb
саморобна некерована бомба (`летючий СВП’ – бочкоподібний контейнер, наповнений ВР); скинути бочкову бомбу
letter bomb (parcel bomb, mail bomb, postal bomb etc)
aerial photoflash bomb / photoflash bomb / flash bomb
barrel assembly (barrel group)
automatic heavy barrel rifle / heavy barrel automatic rifle
fusion bomb (thermonuclear bomb)
thermobaric bomb (aerosol / vacuum bomb, fuel air explosive [FAE])