this just works by firing enough cheap solid heavy lumps of metal as fast as possible
0.5 x m x v^2.
Velocity is a powerful thing. Literally!
Oh, and the density of those shells doesn't hurt either

this just works by firing enough cheap solid heavy lumps of metal as fast as possible
Apologies if I've missed it, but what about the WW1 machine guns? They completely changed the face of conflict as it was known up until then.
No need to apologise for owt darling
The Maxim is in the list - certainly one of the most influential weapons in modern times at least.
Are you going to revise your original list or leave as is?
L96/AWP. Beautiful machine.
Unsure of the final list yet - I've a deadline to stick to unfortunately I will never be able to come up with a top ten everyone could agree on. I'm sticking to handheld weaponry as opposed to missiles or tanks - but that would be a great topic for future.
So far I've written up:
M1 Garand
AK-47
Longbow
Maxim
Roman Gladius
I'll probably include the matchlock, the bayonet and the medieval crossbow but things could change depending upon research. Still leaves two slots.
Do you not think the Hoplite Spear was more influential than the Gladius.
Possibly. I haven't fully researched that yet.
The gladius earns its inclusion as a perfect addition to the Roman military doctrines. It was also unlike most other swords at the time (which were usually long and slashy). The gladius was intentionally short and stabby and complemented the Roman cohesive, up-close-and-personal fighting style. No other weapon would have outperformed the Gladius Hispaniensis and the influence of Rome is still all around us today. So you could say it was the cutting edge of one of the most important and significant empires in history. It also barely changed for centuries.
I actually really fancy putting in the Hoplon - it could be used as a weapon; it's size influenced greatly the tactics of the phalanx and its shape helped the hoplite keep some air to breathe amid the closely packed ranks during battle. I just need to find out how much Alexander used the phalanx and how much he and the ancient Greeks influenced their time.
The Most Influential Weapons of History i think is..............
Religion.
Mounted calvary.
One of the most dominant and feared offensive weapons for hundreds of years up until the development of the tank.
Sure you didn't mean the machine gun? Cavalry was finished in WW1 well before the first unreliable tanks.
L96A1 AW....the real thing.