Ed: This is my first post here so sorry for any mistakes I made. I realize my question was kinda stupid thinking about it.
Here's the gist, I'm having issue coming up with a round for standard infantry that is capable of penetrating some body armors designed. These armors are built with precision and complexity, made of nano-machined ceramics in a crystalline pattern as is capable of stopping most body armors and taking quite a bit of force. There's also some that use more metal like ceramics. Both have some other elements to them, but the most important thing is their protection level, being rated to withstand a high power rifle round like .338 lapua magnum, and have a fair level of protection against laser based weapons through high heat capacity and cooling systems. I could get into the specifics, although that isn't incredibly relevant. The main gist is just rounds with high penetrating power in a reasonable package. Now, I'm trying to design something that's capable of penetrating that. I've tried a few things so far, but have scrapped most of them for varying reasons, those things are:
- Flechette weapons. This would be something like the Steyr ACR, using a typical rifle round, but instead of a typical bullet, a high speed flechette instead. This would have sufficient penetration, but had major defects like not working very well in rain, and not doing much body damage.
- SLAP-like ammunition. I've heard of SLAP ammunition in the past, and heard it was used for standard rifles rounds like 7.62 NATO and could increase penetration. The reason I passed on these is that they're not very effective in small calibers and suffer from inaccuracy
- Squeezebore rifle. This is something I always tend to like to come back to, just since I think it's such an interesting design by nature. It has some viability, but is offset by it's short barrel life and suffers from inaccuracy in small calibers.
- Gyroget rifle. The main possibility I saw here was the theoretical capability of high speeds, but was off put by it's low fire rate, low reliability, and just bad performance.
I've also thought through some other possibilities, although I haven't thought them through too much and I'm not sure if they would work very well or not. These are:
- Railgun/Coilgun Rifle. I presume I could get sufficiently high speeds out of a railgun or coilgun, although the main flaws I see are high power draw from them and the issue of using them for infantry weapons, but otherwise a possibly good candidate.
- A typical gun with a coilgun enhancer. This is very similar to the one above, but I think it also seems promising. It has less power draw than a typical coilgun, but the major downside is the necessity of the round to be magnetic, ergo limiting the round in terms of options. A possibly work around would be an iron jacket around a typical bullet.
- Simply a higher power rifle cartridge necked down to an intermediate one. This would be something like 7.62 NATO necked down to 5.56 NATO. Would heighten speeds, although I'm not sure of the efficiency.
- A plasma wreathed bullet. This is a unique one, essentially being a bullet covered in plasma held in place likely by fields emitted by the bullet. Not sure if it realistically works, and even so would probably be expensive.
Essentially in this post, I'm looking for if anyone has any possible solutions to the issues I've seen in what I've already suggested, or has ideas of themselves. The following parameters are:
- Must be capable of penetrating high level body armor, preferably also doing some sort of decent damage to who or what it hits.
- Must be at least semi-realistic, some slight handwaving is allowed, but no use of fictional materials..
- Must be possible to be carried by typically infantry, probably equipped with an exoskeleton.
- Preferably sticking away from lasers, but this doesn't mean it has to be a conventional bullet. Feel free to think outside the box, like heat based weaponry or other.
I also realize I might be looking in the wrong place, and the answer might be in more effective recoil dampening systems, or by using weapons that don't rely only on penetration and instead brunt force. Another clarification is that it doesn't necessarily have to be built to penetrate that armor, instead being more general for just high penetration, I was more just introducing the situation and why I need it. Regardless, thanks for the help!