In parts of southern and western Asia, as elsewhere, the cannon once served as one of the most dramatic tools in the inventories of state executioners. The practice of ‘blowing from a gun’, by which the condemned was bound to the front of a cannon and quite literally blown to pieces, was most infamously employed in British India and the Princely States, and the vast majority of English-language scholarship focuses on these regions. However, blowing from guns was commonplace in several other contemporary states, and the British use of the practice has rarely been situated in this context. The tactic was considered especially useful in Persia and Afghanistan, where weak governance, rebellion, and rampant banditry all threatened the legitimacy of the nascent state in the nineteenth and early twentieth centuries. This article presents a history of the practice of execution by cannon in southern and western Asia, positioning it within the existing literature on public executions in the context of military and civilian justice. In doing so, the article seeks to situate the British use of the tactic within a broader regional practice, arguing that, whilst the British—following the Mughal tradition—used execution by cannon primarily in maintaining military discipline, states such as Persia and Afghanistan instead employed the practice largely in the civilian context. This article also provides a brief technical review of the practice, drawing upon numerous primary sources to examine execution by cannon within the Mughal empire, British India, Persia, and Afghanistan.