Using projectile weapons versus the Borg.

[The Yosemite Bear]

still given conservation of momentum stopping power can still kill even if it fails to penetrate armour.

[Darth Wong]

Is it possible to identify the particular weapon used in those screenshots?

[Winston Blake]

Is it possible to identify the particular weapon used in those screenshots?

It looks similar to a Colt Peacemaker. I'm not familiar with revolvers; I just recalled that most Westerns have Colt Peacemakers in them.

[Sea Skimmer]

I think that WW I is advent of really modern cartrdiges with smaller caliber ogival-pointed steel jacketed and/or cored bullets like .303 british, later .308 winchester or 8 mm mauser...

You think wrong then. The birthplace of modern high velocity ammo with pointed bullets would be the French Lebel 1886 rifle firing 8x50R ammunition. This was the first gun and cartridge design to use smokeless powder, nearly thirty years before The Great War.

Also modern anti armour penetrators for cartridges like 50 BMG can be CNC machined solid bronze alloy slugs, since we can make better gun barrels.

No. Bronze is fairly soft and most certainly not ever used for armor piercing projectiles. Hardened steel, tungsten and depleted uranium are what they make AP rounds out of these days. In the case of AP rifle and pistol cartridges, the projectile may only have a hard core, surrounded by soft lead or aluminum with a copper jacket, or the entire projectile may be a single solid piece of hardened material. Capped AP ammo has been manufactured in calibers as small as 7.92mm, perhaps even smaller, but that isn’t typical.

Oh - the stopping power of these old guns is no doubt. As I said old .45 cartridges have more internal volume, so they were loaded with more powder than their todays versions.
Colt Dragoon, percussion revolver, can load 60 gr of black powder, that is huge load. It very nearly to modern .44 magnum cartridge in terms of power.

The Colt Dragoon also happens to be as big and heavy as some submachine guns, and in fact has a chamber which will only hold a 50 grain charge, because the 60 grain charge on earlier models led to bursting. Not the most useful of weapons all and all. It is NOT as powerful as a modern .44 magnum, though .357 magnum is a close equivalent. .44 magnum has around 200ft•lb more energy.

The characteristics of those big revolvers and there ammunition are in any case exactly the opposite of what you want for maximum armor penetration.

[Peptuck]

I recently saw "Fistful of Datas" on Spike. Evil Data definitely fired off six rounds at Worf's jury-rigged energy shield.

[Gullible Jones]

How did Worf take it? Did he get knocked back, or did he just stand still?

[The Yosemite Bear]

he used the slow knife...

[Peptuck]

How did Worf take it? Did he get knocked back, or did he just stand still?

He stood still. The rounds were completely deflected as far as I could see.