Hi,
I am going to digress a little and address Bill Rowe's comment above. The controversy about the "secret hair trigger" and its affect on the duel is a debate about a myth. Hamilton was familiar with these pistols because his son was killed by one in a duel 3 years previously. It was standard equipment for dueling pistols to have set triggers since the the 1780s. Often there was no obvious adjustment screw showing because the trigger pull was permanently set by the gunsmith. Moreover, during their duel they lowered their pistols at each other for deliberate aim waiting for the signal to allow fire. Hamilton wrote before the duel that he intended to fire and obviously miss Burr hoping that would satisfy him and he would do the same. Burr hated Hamilton and probably intended to kill him regardless of what happened.
There are a lot of myths about dueling and dueling pistols in print and on the internet. Often any original pair of cased pistols are labeled as "dueling" pistols. The English and British dueling pistol in its fully evolved form (1780 and later) has several distinct characteristics. The barrels were full octagon, they had front and rear sights, the stocks were custom designed for the owners and fit the hand perfectly, the workmanship and technical excellence of the components was the best at the time, they were usually fitted with set triggers, they generally were devoid of bright ornament but beautifully engraved, and they were sold in wooden cases containing the pistols and accoutrements. Although rifling was frowned upon, later pistols sometimes had shallow scratch rifling. There were no legal rules for dueling because in England it was illegal but there were conventions and customs. However, those customs were just guides not rules so duels happened in many different ways depending on the antagonists. Dueling pistols were meant to kill or maim. There was no notion that they should not have sights or be inaccurate so "god" would decide the outcome. They were deadly accurate at the ranges fought and in the right hands were lethal.
dave