Despite a significant increase in rate of fire over muzzle-loading rifles and muskets, Hall's rifle design suffered from a gas leak around the interface of the removable chamber and the bore, resulting in the necessity of a heavier powder charge that still produced much less muzzle velocity than its muzzle-loading competition.
Although Hall's rifle design saw an increase in firing rate compared to muzzle-loaders, it suffered from a gas leak at the junction of the removable chamber and the barrel, requiring a heavier powder charge for adequate performance, which still resulted in lower muzzle velocity than its muzzle-loading competitors.