The musical play “Hamilton” ends with his duel with Burr. A song leading up to it, the world was wide enough tells the audience that Hamilton “wore his glasses” at the duel, and that he “methodically fiddled with the trigger.” It doesn’t say why, but tries to imply a sort of death-wish where Hamilton “threw away his shot” (fired into the air) because he didn’t want to kill his first friend, or because he thought of his son, who died near the spot. The theory is supported by popular myth, though the details of the events are, by necessity, muddy. All the witnesses testified that they looked away before the shooting started –customary in duels at the time.
There are some problems I find with this theory, and I’d like to present another: that Hamilton was so eager to kill Burr that he over-stacked the deck in his favor. The witnesses noted that Hamilton performed some provocative actions that seem out of character for someone who wants to commit suicide: “As they were taking their places, he (Hamilton) asked that the proceedings stop, adjusted his spectacles, and slowly, repeatedly, sighted along his pistol to test his aim”. This seems like a taunt, if anything. As I reading the letters too, I find Hamilton taunting Burr to duel. He could have bowed out in many ways, as Washington always had, or been neutral. Why taunt? Why wear glasses and fiddle with the trigger? Why test your aim and then throw away your shot?
The choice of guns is important too, along with where the shot actually went. First the shot: While Hamilton’s second originally thought Hamilton had shot in the air, when the seconds went back the next day they found the shot in a cedar limb, “at an elevation of about twelve feet and a half, perpendicularly from the ground, between thirteen and fourteen feet from the mark on which General Hamilton stood, and about four feet wide of the direct line between him and Col. Burr, on the right side”. The men stood 10 paces apart (16-18 feet), so apparently the shot hit about 6 feet above Burr’s head on a line reasonably towards him. That’s not quite shooting in the air.
The choice of pistols is also suggestive. The pistols were the property of John Church, a brother-in-law to Hamilton, and a business partner of both men. Church had fought a duel with Burr some years before and, using Burr’s pistols, shot a button off Burr’s coat. Burr missed completely. Church then bought these new pistols in London — Wogdon pistols, with an extra-large bore and sights. Sights were not considered “sporting” for duels, and not ordinarily allowed. With sights on the pistols, one could not miss if one aimed. As for the bigger bore, this too was unusual. If you hit, you killed; most gentlemen preferred a less-deadly duel. Hamilton chose to use these pistols even though he owned two, “legal” pistols (smaller bore, no sight). As the challenged party, it was his right. Still, why not choose your own, if not to make use of the sight and the large-bore. And, according to his second, he seems to have practiced with the pistols beforehand .
Analysis of the guns, done in the late 1970s  turned up another illegal feature. While they appear to be normal dueling pistols, these guns have a hidden feature. If you move the trigger a fraction of an inch forward it sets a hidden, hair-trigger. It’s a hidden feature that Hamilton knew about  but Burr almost certainly did not. If Hamilton surreptitiously set the hair-trigger, it would give him a tremendous advantage. He would be able to shoot more quickly and more accurately, with a much lighter squeeze on the trigger. The sights ensured it would be a kill. Burr’s gun, unset, would have required the normal, heavy, 10-15 pound pull. His shot would have been slower and less accurate. As it was, it seems Burr fired second.
There are a couple of problems with using hair-trigger pistols, though. They can go off prematurely, even if you know the trigger’s been set , and it’s worse if you are not quite sure you’ve set the trigger. The Wogdon guns intentionally made it hard to tell if you have set the trigger or not, and made it impossible to unset the trigger without firing. I suspect that Hamilton cleaned his glasses, fiddled with the trigger, and sighted his aim because he was unsure whether he’d set the hair-trigger. My theory is he came to the wrong conclusion. According to the seconds, Burr’s shot was almost simultaneous, but his apparently achieved a lucky/ un-lucky hit. Burr killed his rival, but also killed his own political career, the unhappy end to a beautiful animosity, discussed in the play, and discussed by me from a different angle. 
1. Testimony at trial, Centinel of Freedom, November 24, 1807, cited in Winfield, 1874, p. 220.
2. Nathanial Pendelton’s Amended testimony of Nathaniel Pendleton and William P. Ness’s Statement of July 11, 1804. Amended after the pair revisited the site and found the bullet.
3. “Pistols shed light on famed duel”, Merrill Lindsay, Smithsonian Magazine. 1976.
4. ibid. Hamilton told his second not to set the hair-trigger, and then seems to have set his own. Linsay’s theory is that Hamilton knew he’d set the trigger, but squeezed it too early.
5. Since the witnesses looked away, you might think of another explanation: that Burr fired first and Hamilton’s gun then went off in death throw, in the general direction of Burr. A couple of problems with this theory: for the gun to go off like that, Hamilton would have had to set the hair-trigger. The ordinary 10-15 lb trigger would require a determined squeeze. Also, for the bullet to hit the tree like that, Hamilton would have had to raise his gun past Burr, though not to the side or down as one might if he wished to throw away his shot. And Burr would have to have set the trigger himself to shoot so fast and so well. Randall’s book, “Alexander Hamilton, a life”, claims he did, p. 424, but looking at this video of the hair-trigger mechanism, I find the mechanism is too cleverly hidden for Burr to have noticed. It escaped detection for 170 years. Finally, for Burr to shoot to kill without provocation, would require that he murder in cold blood, and Burr shows no evidence of that. Besides, Burr would have had to worry that the witnesses might turn around and see his dastardly deed. As it was, even with Hamilton’s gun going off, Burr’s reputation was ruined. I reject this theory, and assert as others have: “Hamilton did fire his weapon intentionally, and he fired first.”
Robert E. Buxbaum, May 10, 2017. You may like these other songs from Hamilton, “your obedient servant,” and “the ten duel commandments.” And you may like this essay about Burr, Tammany Hall and the Manhattan bank.