That is awesome information. Many thanks for locating this.
The rifle just reminds me of our modern single-shots. Even though there were some after-action reports that indicated heavy rates of fire, the Brits never reported any sign of jamming, like what happened to some of our rifles during the late 1800's when the barrels got really hot.
My wife thinks I'm crazy, but I want to actually take one of those rifles to the range one day.
~Robert
Denver, CO