To test the killing power of the "Chicago Typewriter" in The Mafia episode, they set up 7 plastic dummies in suits in an over-the-top parody of an Italian restaurant. Then Tommy-gunned the hell out of it. Then showed it again in slow motion.
To make it fair, they then proceeded to do something similar for the Yakuza's Sten Gunnote for those following along, the Yakuza had largely postwar black market western firearms and Japanese close combat weapons. For this they had the British Sten and the German Walther P38, backed up by nunchaku and sai.. This time the simulation was four dummies in a simulated Japanese greengrocer's stall. It was a great episode for people who liked seeing exploding wine bottles and splattering fruit, as well as the destructive power of a submachine gun.
The very first episode set the tone when the Apache warclub was pitted against a human skull and crushed it to dust.
The Samurai's Katana as well in the Second Episode when it easily sliced through two Pig carcasses like it was nothing. Maybe Katanas Are Just Better afterall.
The legendary status of the Katana allows the Vikings to have their own awesome moment when their chain mail armor stops a Katana strike cold, with minimal damage to the armor and no damage underneath.
In The Mafia vs Yakuza the Mafia boss ice-picking the last Yakuza, lighting a cigar and sauntering away with a cocky smile.
The Spartan's shield pretty much any time it's shown.
They measured it, getting a Shield Bash from a Spartan means the same amount of force as a car crash.
William Wallace vs. Shaka Zulu; as effective as Zulu's ikula spear is, when tested against the Scottish claymore, it's no contest as the claymore neatly decapitates three gel torsos - including bone - with ONE SWING. Dr. Dorian went on to say he didn't think such a thing was even possible.
The finale of the battle between Jesse James and Al Capone was particularly awesome. Also, since the Jesse James gang is portrayed as sort of of a Band of Brothers as opposed to Capone's Bad Boss approach, it can also be seen as somewhat of a Crowning Moment of Heartwarming. Particularly when one theorizes that the surviving gang member is probably Jesse's brother Frank.
The final showdown (a fisticuff brawl) between Al Capone and Jesse James. Capone lays an utter beatdown on Jesse (who's laughing through it despite nearly being beaten into a bloody pulp) and just before Capone finishes him, he looks up and sees Frank aiming at him before finally being shot a moment later.
Before that, the way in which the Al Capone camp demonstrates the switchblade, by smugly carving up a (ballistics gel replica of a) person, finishing off by slicing its throat.
The Aztec Jaguar gets two: To test an obsidian bladed club, they decapitated a horse. A gel torso replica, but still… Later, to test his knife, the Aztec expert carves open the gel torso's chest and rips out its heart!
Which is then topped by the Zande, when their close range weapon decapitates a gel torso in one strike, and the resident surgeon Armand Dorian declares it to have, "surgical precision". And then the Zande representative starts drinking up the squirting blood.
When testing Vlad the Impaler's sword, the kilij, a guy who looks more like a member of Dethklok than a weapons expert shreds a pig in a display that gets the weapon called "the first sword that can rival the katana."
Moreover because of how dinky it looked compared to the Ka-bar when he and the Israeli were standing next to each other. Think about it: that knife is about three inches long, and Roy did to the gel torso what most people would need a sword to do.
The preceding test with the Israeli Ka-Bar was pretty damn impressive as well. Lesson learned: don't piss either of these guys off if they're holding a knife.
When Abdi Ali (the Somali pirate rep) was able to hit four targets, 50 and 100 yards away, and kill them all. Made all the more impressive as he's using an AK-47—a gun that's usually considered inaccurate— and also it was from a boat that was moving and unsteady. Then again, Abdi is an Iraq War veteran, leading to fans complaining that he didn't represent a typical pirate.
Sun Tzu's leather armor stopping a bolt from a crossbow almost 2000 years more modern.
George Washington delivering a brutal left cross to Napoleon's jaw once their battle finally came down to crossed blades.
Joan of Arc's siege cannon basically liquefying a gel torso it was used on.
Not to mention the battle, Joan of Arc (A seventeen-year-old peasant girl turned leader of the French armies) taking down William The Conquerer (the French-Norse King of England).
In the sim for Saddam Hussein vs. Pol Pot, rather than a dramatic fight to the finish, Saddam puts a bullet right into Pol Pot's skull.
During the simulation for Theodore Roosevelt vs Lawrence of Arabia, Lawrence kills Roosevelt's last soldier with his dagger. The soldier falls, revealing Roosevelt stading there, knife in hand, ready to fight.
Earlier in the sim Roosevelt gets shot by one of Lawrence's soldiers wielding a rifle. Rather than punk out like anyone else would Roosevelt gets right back up and says he's okay. A nod to real life when Roosevelt did get shot and finished what he had to do before anything else. That "what he had to do" was deliver a 90-minute speech.