Wow, I end up aware from the boards a few days, and this topic gets filled with lots of awesome stuff.
I have no clue how all to reply, other than to toss stuff out.
Warning: Wall of text follows.
I shall not be held responsible for eyes that implode, burn out or otherwise explode while attempting to read a post that took a barely awake person an hour to actually finish.
1: The thing relating to anti-matter that I brought up.well... lots of stuff I could expand on with...
Anti-matter is dangerous, but takes up little space.
Lunch box storage system vs. many shipping containers (the 8x8.5x40ft type)
The main problem is going to be energy.
An advanced space based group should not have such problems. Fusion power, quantum power, or solar arrays the size of continents floating in space.
A Dyson sphere sort of fixes the problem in general.
Or we go to look at a 1 AU radius Dyson sphere, and were are talking upwards of 1x10^17 square miles or 2.8x10^17 square km of surface. Even 1% of that used for solar energy collection means mind boggling levels of energy to play with.
Anyways, bullet itself is the containment unit, the magazine itself has small power source to maintain the power, which ties into the weapon, which has or is tied into the 'main' power source.
Or just make it a self contained weapon system that uses a special magazine that holds power cells and tiny anti-matter storage cells encased in bullet like casings. Toss in some dimensional shunt or one shot teleporter that dumps the anti-matter 'someplace else' in an emergency.
Be it a small 9mm bullet, a .50 caliber dessert eagle with an attitude boost, or just a super charged grenade launcher, RPG or man portable rocket launcher, anti-matter in a ranged weapon could be nasty.
If you want to get evil, move into the realm of hand grenades and demolition charges. Even a lunch box sized thermonuclear device could be scary. (Crusader No Remorse/No Regret suddenly comes to mind)
Have to think in today's terms, we already have things like watch batteries, all sorts of little things that use some sort of small electro-magnets, and also nuclear power sources that could likely fit into the back of a mini-van... so for a high tech futuristic group, packing nuclear death in a firearm might not be so hard.
Or to go out way into la-la land and perhaps well beyond the realm of sane sci-fi...
A specialized material that wants to remain cohesive and generate an EM field when charged in a plasma state, used to encase a microscopic amount of anti-matter with an equal charge. The 'shell' is 'repelled' from the anti-matter that has an equal charge, maintaining the vacuum around the anti-matter yet giving a method to keep matter from reaction to the anti-matter and also giving the anti-matter a method in which to be transported (accelerated at high speeds) to the target.
In terms of finite materials (and having access to the majority of the energy from an entire star) makes anti-matter a practical application, especially in terms of portability. Also, it doubles as a way to ensure the enemy can salvage no useable technology if a downed robot can self destruct themselves while using a specialized field to contain the majority of the blast, so they vaporize themselves, and not worry about leveling friendly positions or damaging friendly forces.
As I said, tiny amounts.
Which is why I said 1 micro-gram, or equivalent to just 80 pounds of TNT.
Crossing anti-matter with a Daisy Cutter or MOAB is just asking to crack a planet wide open or otherwise knock it out of orbit.
Could toss backpack nukes into the mix. I think the minimums are at the sub-kiloton range (could be mistaken), or the Davy Crockett, a portable nuke 'rocket' (from the 1950's no less) with a warhead yield of some 10-20 tons equivalent of TNT.
Also, transporting a microscopic amount of anti-matter would probably be cheaper and easier than trying to move dozens, hundreds or thousands of pounds (or tons) of more conventional explosives. A nice portable alternative to trying to haul around a massive fusion reactor when you could have a multi-purpose matter/anti-matter reactor/bomb that could generate power, blow up the enemy, or annihilate a friendly base to prevent tech from falling into enemy hands.
Heck, carrying around nukes would likely be safer and cheaper than hauling around lots of explosives.
Also, in terms of finite materials, high tech alternatives means more can get done with less mass and volume, which also means less effort is needed to transport said materials and the finished products of death and destruction.
Examples of anti-matter in sci-fi.
Buck Rogers (power plant someplace, real small, could fit into my front room, threatened to take out part of a continent due to a problem it developed in the episode it appeared in)
Star Trek (photon torpedoes, power plants, whatever else they cram it in)
Star Wars (hyperdrive rings for starfighters, and a type of Imperial mine... and a Star Destroyer prototype at some point)
Total Annihilation (in the Commanders and the 'nuke' missiles), and I think also in the spiritual successor, Supreme Commander (might also mention the effective intergalactic range teleports through some gate network thingy...)
(note, I already trimmed out maybe half of this first bit... amazing my keyboard isn't smoking or smoldering...)
2. The thing about Depleted Uranium. Being classified as a heavy metal, I figured it was 'toxic' to humans, as other heavy metals are.
Also, DSTech may be robots, but I am sure their organic neighbors might be more concerned.
Also in question would be what they would be doing with the whatever large amounts of Uranium they would need to make large amounts of Depleted Uranium, especially when stuff like fission based reactors might not even be practical or efficient compared to what all DSTech likely has access to in terms of energy sources.
On a related note, didn't the US Navy phase out DU and start using Tungsten for their 20mm CIWS ammo?
3. That video of the rail gun.Yeah, that does look nifty.
If they get it so they can take out a modern day main battle tank with a 15mm or 20mm round hit to the main armor (and not a weak spot of some sort), then I will be impressed.
(War INC for the win)
Also fun watching air cannons put assorted materials through brick walls, wooden walls, windows, etc, while testing effectiveness of building materials vs. stuff like tornadoes and hurricanes.
4. Did the subject ox X-Ray lasers pop up somewhere and I just missed it?Nothing like a big gun that can not only devastate whatever it is aimed at, yet also level the area it happens to be in. Make a handy bunker buster... it fires into bunker from just above ground... bunker gets a big hole to drop stuff into, everything above ground just gets nuked in some way. Unlock the front door and mow the lawn in one fell swoop... or something like that.
5. I saw the words 'laser bazooka'.Reminds me of the computer game Silent Storm, where there was a massive beam cannon thing wielded like a rocket launcher of large size... had over-penetration problems iirc... such as taking out the poor bastards/buildings/stuff behind the heavily armored target being shot at.
Sorry for the long post, but there was some 4-5 pages of stuff I had to sift through, and I only got 6 hours of sleep, and my mind needs new brakes or something.