The first viable repeating rifle didn't come around until the mid 1800's, not when the Bill of Rights was written.
Might wanna Wikipedia "repeating rifle" sometime.
Here.................I'll even help you out......................
Repeating rifle - Wikipedia the free encyclopedia
You might want to use that same source for looking up machine guns.
Machine gun - Wikipedia the free encyclopedia
"The first known ancestors of multi-shot weapons were early revolvers made in Europe in the late 1500s. One is a shoulder-gun-length weapon made in Nuremberg, Germany, circa 1580. Another is a revolving
arquebus, produced by Hans Stopler of Nuremberg in 1597.
[5]

Replica
Puckle Gun from
Bucklers Hard
Another large, early repeating was created by
James Puckle, a
London lawyer, who patented what he called "The
Puckle Gun" on May 15, 1718. It was a design for a 1 in. (25.4 mm) caliber,
flintlock revolver cannon able to fire 9 rounds before reloading, intended for use on
ships.
[6] According to Puckle, it was able to fire round bullets at Christians and square bullets at Turks.
[6] While ahead of its time, foreshadowing the designs of revolvers, it was not adopted or produced."