@RAM: Again, the AS-HAC-1 uses fireballs in small crystal containers and suffers absolutely zero problems because of it.
I cannot find a source for that. And it seems pointless. All it would do is increase the armour of the firing chamber, which is creat and all but you could just increase the armour of the firing chamber. It would potentially replace some of the cracking I suppose, so not completely useless, but it is not as though it would automatically fix everything. Unless you mean that the whole cannon is a small crystal container? Making that container man-portable and expecting it to contain a blast big enough to kill 100 soldiers is a big ask. Just because a cannon the size of a soldier can do it doesn't mean that one the size of an arm can.
And removing the steam element should improve power, not decrease it. A PSF can blow up entire squads of soldiers with one hit. What we're doing with our steam cannons is turning that into steam then using that steam to move the projectile, when we can just cut out the middleman. Converting the fireball's energy to steam then using that to propel the bullet is going to be have a lot more wasted energy than just using the fireball to propel the bullet.
Cutting out the middleman is not a good thing. In this case the middleman is not taking a large cut, as the steam should already be steam, and is contributing a lot, as the steam is more dense than air and thus stores energy more effectively, keeping the chamber ressurised. The same existing steam chamber would be weaker without the steam, and removing the steam chamber and just having a tiny little hole would fore the whole fireball to detonate in a much smaller space, concentrating the force, and causing the gun to explode, spraying shards through everyone nearby. This is not the middleman who threatens to ruin your reputation of you don't give them a 50% commission, this is the middlemad whith a massively greater exposure than your own who maintains a small markup and grants you access to a market share that you could never achieve on your own. The steam system increases the maximum force that can be tolerated, removing it results in less powerful rifles, unless there is some special trick to overcoming this. Perhaps you could try summoning the crystal over steel instead of over air? Thus producing am ahem, 'alloy' of the two materials that somehow possesses none of the manufacturing, research, or any other problems nor properties of alloys in general but does offer a crystal structure that is extremely shock resistant due to its high density stuffing...
Of course, they definitely are not using a full fireballs spell, so mentioning them is sort of pointless.
It won't solve the airship problem, yes, but their airships are already a minor factor. The big problem is just their air domination overall, and the rifle should really help with their carpets.
That is extremely optimistic. They are increasing their armour and altitude. The rifles will be extremely lucky if they achieve anything at all against air forces. or to the point, we can already deal with their carpets and the carpets carry far less ordnance.
Also, I'm confident that the revision I'm planning (Make HC1-E, HA1, and steam engine out of crystal) is both really easy and should solve the problem. The main reason why we're losing at sea is because our Crystalclads can be sunk with just one lightning strike due to its exposed steam engine. If we make the steam engine out of crystal, then lightning should be a lot less effective against it.
Ummm, no? They are dropping fire pots on our steam engines too. And they are pretty big exposed targets. A simple remodelling of the crystalclad's hull would fix the problem. Making boilers out of crystal would still leave it as a vuulnerable piece of crystal that has to contend with internal pressure. Don't forget that they still have lucky strike, so you can't expect them to just not hit the boilers if they are still exposed.