Build Your Own Gauss Pistol

BdosError writes "A Russion software developer has developed a homemade Gauss pistol. It's not very powerful yet, but as a proof of concept, it's interesting. Nice, non-chemical slugthrower that should appeal to fans of Science Fiction and related games, like Traveller and many others."

Comments

They don't exist?

[cyranoVR]

Using a series of magnets to accelerate a metal slug - it doesn't seem like it would be that hard to do. Right?

Also, aren't "Guass Guns" are more widely known via the games (both board- and PC-) BattleTech and Mechwarrior?

Re:They don't exist?

[SkArcher]

Gauss Rifles are from battletech.

Interestingly, I don't think the mass of the slug makes all that much difference to the eventual damage - force = mass * acceleration

So using lighter weights would be advantageous, up until the point where the projectile becomes too light to keep a decent trajectory in a cross wind.

And of course, there is the Particle Projection Cannon, with a charged particle instead of a magnetic slug...

Re:They don't exist?

[Mostly a lurker]

Evgenij Vasiljev does not claim this is a new concept. What he claims (and I do not know enough to validate this from his data) is that his prototype is the most efficient (by which I think he means velocity relative to power input) yet developed. It is dangerous to judge a book by its cover but, based on his site, it looks like a very interesting project.

Re:They don't exist?

[NeoSkandranon]

Interestingly, I don't think the mass of the slug makes all that much difference to the eventual damage - force = mass * acceleration

This does not quite translate into how a round will effect a target. Particularly a soft one. A light projectile travelling extremely fast will penetrate a human (for example, lets take the NATO 5.56x45mm round) and do significant damage, but won't always be lethal, because the high velocity causes it to penetrate and keep going, rather than transfer all its energy to the target. Compare to a 7.62mm round, which is traveling slower, heavier than a 5.56, but it does LOTs more damage

Re:They don't exist?

[Tassach]

The real-world lethality of a round of ammo is highly complex and often counterintuitive; not all of the mechanisms that increase or decrease lethality are well-understood.

While the kinetic energy (KE = 1/2 M V^2) and momentum (P = MV) have an undeniable relationship to lethality, they are demonstrably not the only factors, as there are real-world comparisons which show rounds with lower KE and momentum which are more lethal than ones with more KE and momentum.

Personally I shoot 9MM; my preferred ammo is 147gr@980fps, compared a more conventional loading of 125gr@1160fps. Real-world statistics show that the 147gr loadout has a slightly better track record of one-shot kills than the 125gr, even though the 147gr has roughly the same momentum and 20% less KE.

The M-16, firing the 5.56 nato round, has roughly 70% as much kinetic energy and momentum as the 7.62 Russian round used by the AK-47. Yet, pradoxically, battlefield statistics from show that the survival rate of people shot with 7.62Rus is significantly higher than that of people shot with 5.56NATO.

Re:Hrmm

[SkArcher]

I'm wondering how the existing laws of various countries hold up against this weapon. Don't a lot of laws specify the weapon by the method the projectile is accelerated (i.e. in existing cases a chemical reaction)?

Does this weapon circumvent any laws against firearms?

Re:No sound!

[f97tosc]

While the parent post is disturbing, I will respond regarding this post. Sub-sonic ammo with silencers take care of most of that problem with traditional guns, while coil guns are tunable with the desired weight and size of the projectile used in them to keep the round sub-sonic

Of course it is possible to keep the bullet subsonic, but then your weapon is pretty useless as a sniper rifle.

There are very active research programs going on in a number of defense groups concerning rail guns at all scales from personal defense to large scale cannons.

Yes, and of these I think the cannon are promising but the personal not. For example, by putting the this into artillery on an aircraft carrier you can shoot further and more accurately and you get power from the nuclear plant.

But for a personal weapon, you have just exchanged a small case of gunpowder for a big battery, and you have gained...what? Not range and accuracy; these are limited by the markmanship of the user and not by the speed of the bullet.

Tor

Re:5mm bullet, 33 m/s muzzle velocity

[Xeger]

He's claiming that an air rifle pellet travels at ~250 m/s.

The problem is, pellets are light, hollow structures. An air gun pellet masses much less than a metal sphere. Low mass means less inertia, which means less hurtiness.

I don't know about air guns, but I know that an 8mm paintball travels at no greater than 100 m/s (and that's a very fast paintball indeed). Those things hurt! Furthermore, they hurt the most when they fail to break; their breaking gelatin shells dissipate some of the energy. The most painful paintballs are those frozen by sadistic fucks to deliberately cause more pain.

I imagine a metal BB hitting you travelling at 33 m/s would at the very least sting something fearsome.

I Still Prefer the Lepage Glue Gun

[good soldier svejk]

"What "Lepage gun?" Colonel Korn inquired with curiosity.

"The new three-hundred-and-forty-four-millimeter Lepage glue gun," Yossarian answered. "It glues a whole formation of planes together in mid-air."

- Catch-22, Joseph Heller

All kidding aside, the Germans did have Gauss gun research projects among their myriad secret weapons. Back then they called them "rail guns" as often as not. Not to be confused with these.

Re:You got one thing right. This is a *WEAPON*.

[Kintanon]

You know what else is small, silent, and powerful enough to kill a man? A rock.
And I can fit a whole shitload of rocks in my pocket.

Watchout! I'm an arms dealer!

Kintanon

Re:when i hear the word gun, i reach for my cultur

[NerveGas]

The answer is extremely simple, really.

In Switzerland, pretty much *everyone* has a firearm. Now, think to yourself: Are you going to cause trouble in a society like that? You certainly wouldn't think of sticking up that cafe, now would you?

Now, move your thoughts to America. The gun laws serve only to take guns away from honest citizens, while doing very little to keep them away from criminals. Think about it: You're a criminal, you've got your gun. You know that the honest folks don't. Now how scared are you of sticking up a cafe?

There are still places where guns are common-place. Guess what! Things go along without problems.

I've also lived in countries where guns were extremely difficult to come by - if the laws didn't stop you, the economics of the situation probably would. Guess what! The murder rate was astronomical compared to the United States. Serial killings, mass killings, murder/suicides, family dispute killings, they all happened - and they happened a lot. Just because a gun isn't available doesn't change a person's predisposition to violence.