As others have stated there are certain problems with each separate episode. As an example Al Capone vs. Jesse James. There were no handguns used by Al Capone which was inaccurate. The use of the Chicago typewriter had all ammunition used in one continuous burst -- which action could be questioned. The Chicago typewriter could have been fired in shorter bursts to allow more accurate along with more sustained firepower without reloading.
In this episode Al Capone could have carried a Colt .45 1911 or other handgun. There would have been a difference in the amount of handgun firepower between a Colt .45 1911 and a Colt .45 Peacemaker revolver.
Also either side could have been armed with a 10 or 12 gauge shotgun which could have also made a difference in the outcome. In my opinion all avenues were not explored or considered.
In other episodes there seems to be questions in regards to individual combat vs. warriors who are used to fighting in groups. There are many differences in methods used during these confrontations, which should be taken into consideration along with an individual person's ability.
