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    • KobaCumTribute [she/her]@hexbear.net
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      2 days ago

      Those are two entirely different things. Railguns are a sort of “this could scale to an absurdly high level if you can pump enough current through it, but at those levels it oxidizes its rails rendering them useless after a few shots” thing (and the big artillery pieces that would theoretically enable are kind of dead anyways, since missiles do their job much, much better), while coilguns are just a projectile firing version of the EM catapults that some carriers and roller coasters use as launch systems. Making a good coilgun is comparatively well understood, and it just hasn’t been weaponized because energy storage and all the hardware for it has generally been heavier than conventional ammo and a firearm that’s able to handle the pressure of a given shot.

      Here I’m assuming they’ve just optimized the firing sequence to minimize the waste and are using high end modern batteries to get something with the size and weight of a typical infantry rifle but the performance of a machine pistol, for the explicit purpose of reducing its volume as much as possible. So it’s kind of comparable in role to something like the Soviet’s AS Val/VSS Vintorez rifles with their integrated suppressors and subsonic cartridges.

        • KobaCumTribute [she/her]@hexbear.net
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          2 days ago

          I’d expect infantry scale railguns instead tbh. A naval railgun has to somehow be better and more logistically efficient than a missile rack and its ammunition and the current trend is for those to get cheaper and more effective (and I believe China in particular is absolutely dominating in that regard). There’d need to be some kind of breakthrough in anti-missile systems that makes “just send more cheap missiles at a target to overwhelm the defenses/exhaust their interceptors” no longer viable, like a laser CIWS that actually works in practice, in order for “how do we make big artillery pieces work better?” to make a comeback.

          At the small scale, it’s possible the issues of railguns ruining their barrels could be solved, but it still needs a good answer to “why are you not just using conventional propellant?” and now “why are you not just using an anti-infantry/anti-vehicle drone system instead?” Since railguns are more efficient than coilguns, it’s feasible it could end up working as an integrally silenced weapon (and stealth aside, reducing volume is good especially indoors because it reduces hearing damage for everyone nearby) although coilguns would probably win out on reliability.

          • They do have this

            China has also been developing much larger electromagnetic weapons. In 2023, the PLA Naval University of Engineering reportedly tested the world’s most powerful coil gun that could fire a 124kg (273lbs) projectile at speeds of 700 km/h (435mph).

            But like you said that is a different tech than a rail gun.

  • Des [she/her, they/them]@hexbear.net
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    2 days ago

    if it was possible to, one could go back to my earliest posts when this site opened, wishcasting Chinese fusion power systems and coilguns, distributed to the global south and other revolutions

    it was just nerdy sci-fi brain but i am happy that these prophesies continue to bear fruit lathe-of-heaven

    so if in the next few years Greta Thurnburg and a team of activists are decked out with these things then I’m going to freak the fuck out and wonder who’s been putting Spice Melange in my couscous

  • JustSo [she/her, any]@hexbear.net
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    2 days ago

    Okay but it can definitely be dialed up TO lethal right? I haven’t seen many of these that looked as or more effective than a slingshot.

  • AernaLingus [any]@hexbear.net
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    2 days ago
    Full text of the SCMP article

    China has miniaturised the technology used to make electromagnetic cannons to develop a handheld coil gun, according to state media.

    The weapon was designed for stealth, non-lethal operations and law enforcement, state broadcaster CCTV reported on Saturday, adding that it could fire between 1,000 and 2,000 projectiles a minute and penetrate wooden boards from dozens of metres away.

    Its power levels can also be altered, meaning that on lower settings there is less chance it will kill someone and instead disable them.

    The lightweight electromagnetic launcher has a barrel just 30cm (12 inches) long and can be easily held in one hand.

    It is also fitted with a laser pointer to improve accuracy, according to its developer, state-owned China South Industries Group Corporation.

    The weapon, also known as a Gauss gun, employs electromagnetic coils to fire metal projectiles at high speeds. Unlike conventional firearms, the electromagnetic weapon produces no muzzle flash or smoke, makes very little noise and does not discard shell casings – all of which make it ideal for stealth operations.

    Saturday’s report from CCTV featured a model that had been upgraded from a test version developed last year.

    The new weapon has a slightly longer barrel and can fire bigger and heavier projectiles. Although the firing speed was slower, there was a considerable increase in both the projectiles’ kinetic energy and destructive power, the report said.

    It also has an electronic display that shows battery life, ammunition count and firing modes, while the shooter can adjust the gun’s electric current to control its output power and vary projectile speed based on the distance from the target and on-the-spot conditions.

    “By spreading impact force to a larger area, it can effectively subdue targets while reducing the risk of fatality,” military commentator Zhang Xuefeng told CCTV.

    The detachable magazine is positioned behind the centrally located grip, enabling the electromagnetic coils to span the entire length of the chassis to maximise the projectile’s acceleration distance, while maintaining a compact frame, according to the report.

    Although the portable coil gun is currently intended for specialised non-lethal scenarios, mainly due to the limitations in battery power output, Zhang suggested the weapon could play a more significant role in future warfare, potentially supplementing or replacing traditional firearms in certain combat environments, as battery technology continues to improve.

    China has also been developing much larger electromagnetic weapons. In 2023, the PLA Naval University of Engineering reportedly tested the world’s most powerful coil gun that could fire a 124kg (273lbs) projectile at speeds of 700 km/h (435mph).

    A rail gun, another type of electromagnetic weapon that uses a pair of parallel rails to accelerate projectiles, is also under development. A prototype was reportedly seen on a People’s Liberation Army naval vessel for testing as early as 2018.

  • Ilixtze@lemmy.ml
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    2 days ago

    I can build my synthetik breacher build in real life just in time for the ai wars.

    Tho they will probably wont be ai wars but more like wars on tech oligarchs. :[