No.
1800s
Double barrel musket shotgun
Not possible to answer this the way it is phrased. The 1800s covered 100 years- and in that time, firearms ranged from flintlocks in 1800 to machineguns in 1899.
YEH THEN EVERYONE IS GONNA DIE
Hans Janssen of gun-making fame was born in the mid-1800s.
It made it easier for mail to get to people faster.
The present day Gatling gun fires a more powerful cartridge, and fires much faster. The 1800s gun was hand cranked, the present day version is powered by an electric motor. One modern Gatling gun is the GAU-8 gun on the A-10 Warthog aircraft- the gun is about as big as a Volkswagen, and fires a 30mm bullet that shoots through tanks.
The maxim gun,invented in1884, was the world's first automatic machine gun
Robber barons
Like everyone else by foot, horse, or wagon.
I have a shotgun stamped FR Loffler in Mainz from WWII. No other markings on gun. Do you have same?
The 'purpose' was to allow one person to kill many enemies quickly !