Queen Anne pistols for personal defense not military use
Queen Anne pistols were vastly superior because of their accuracy and range. Their size made them easier to carry loaded in the pocket or belt. In some cases they were even rifled. They required greater skill to make and were expensive when compared with the more common Holster pistols (aka dragoon pistol). Holster pistols were preferred by the military. Queen Anne's were preferred by the wealthy for personal defense. Pirates seem to have liked them too.