Old thread reached maximum size. Link: >>62981340First of all, enjoy this Elysium Chemrail /k/ino absolutely mulching that dude.What's the tech that we're gonna see in the future? Is it gonna be stuff like Elysium or URM (Battle Angel Alita's Unified Republics of Mars)-tier tech?IMHO the cool stuff could be (or at least I wish it was some of this stuff):-HMX/CL-20 based propellants (PBX being 95-96% CL-20/HMX). CL-20 is currently being tested as rocket and arty propellant. It's great. Non-polluting, acid free (rifle's gonna love it), solid particulates-free (easy cleaning), and lead-free (which is great). It's also smokeless and has only a faint shock diamond pattern that is visible in the otherwise transparent exhaust (when used in rockets, while in guns is basically invisible). This means that if the rifle has a fairly long flash hider (ex. JP Enterprises JPFH-762L), a soldier may be effectively invisible. The muzzle velocities may be 7,000 to 10,000 ft/s (stuff like 200ksi ammo).-Additive manufacturing. With the exception of the BCG and barrel (which must resist pressure/force), the rest can be additive manufactured. Potentially, we could make honeycomb structures that weight 1/4th of the original part (and out of steel too).Another big part may be casings. The same principle of honeycombs (if properly designed) can be applied to casings, allowing troops to carry more ammo.-Advanced optics with integrated hyperspectral/IR+NVG vision and laser rangefinders.1/2
-Sub-MOA accuracy and extreme reliability in the shittiest conditions, maybe even in space. The M16's performance is said to be 5,000 MRBS. Imagine being able to fire 100,000 rounds without a single malfunction. It should also be able to eat whatever ammo you throw at it, whether it's steel/brass/aluminum.-Advanced ammunition. The M855A1 is great start. "AP" tip, copper slug, gilding metal jacket. Metals behave like fluids at hypersonic impact speeds (APFSDS do it too), and the resulting solution can be super-cavitating tips (ex. CAV-X ammo - which is also being studied for extended ranges since it's super low drag). We could have ammo that is capable of penetrating Lv.4 vests at like 1,100 yds or even more.If you were to fire a 155 gr bullet at 7,000-10,000 fps, it would have 1.5-2x the muzzle energy of a 50 cal. Devastating terminal effects with a flat trajectory.-An actual anti-recoil system. The AK-107's system reduces felt recoil instead of actually cancelling it, because it's a closed system. Recoilless rifles work because the mass thrown in the front is matched by the gases in the back. An open system based on a short-stroke piston might solve the issue of firing such powerful ammo.2/2
>>63062070BUMP
>>63062070Killin' chinks in Alaska.
Possible with existing technology:>constant recoil full auto>giga capacity quad stack mags>VLD bullets for service rifle cartridges>hybrid case everything>MP7-style assault rifles>holographic round counter in the optic, like a HUD
How would you design a gun for space?>but guns work in spaceNot the question.
>>63062472Like a gun but instead holding it, it's inside your skull. I call it a skull gun.
HE/HEAT small arms rounds, are they practical? Not cost effective, I'm sure they wouldn't be, but if everyone decided to ignore the conventions banning their use tomorrow, would any countries actually adopt them if cost weren't a factor?
>>63062472The only significant change you'd need to make to conventional firearms would be to make them smoothbore instead of rifled. Rifling might actually be a hinderance since the coriolis effect would be more pronounced in a vacuum and rifling would not be necessary for accuracy anyways since there would be no air resistance to deflect and an object in motion would rather just stay in motion
>>63062472Issues:Evaporation of lubricants in the vacuum, requiring use of special oils if the gun is to be kept in vacuum for any significant length of time.Vacuum cementing which may happen between sliding elements that rub off the oxide layer (albeit the importance of such is frequently overstated).Overheating. With no air, the only way to shed the heat is thermal radiation, and that won't be very effective.Recoil: you will end up spinning unless you align the direction of the shot with your centre of mass.
>>63063182See this >>63063381
>>63062437Quad stack with 100 rounds in it
>>63062472You would either use recoiled ammunition, vent extra offgassing to the side and or use a pack on your back that releases gas to counter the recoil, otherwise nothing would change.
>>63063434Recoiless*Just imagine how we fire rocket launchers, but that's now we fire guns now.
>>63063381> Recoil: you will end up spinning unless you align the direction of the shot with your centre of mass.And in that case, you fly off into deep space. So you have to shoot backwards once too to cancel out the thrust
>>63062472Wouldn't battlesuits be feasible in space since you only have to push that armor around with thrusters? Rifles could easily become obsolete there. Rather use small heat-seeking rockets or something.
>>63062070>tantalum sputtering barrel coatings to completely eliminate barrel wear (enabling higher pressures, higher round counts, and better accuracy/safety)
I just want to bring back up the topic of explosive bullets from the previous thread.
