I've been curious about projectile weapons, too. If the Inkies ever really used ballistics is another question entirely, but some of the effects in the few sorcerous battles leads me to wonder just what gets through Wards and what doesn't. Certainly sound does, but perhaps some form of momentum? It's unclear how exactly the 'Odaini Concussion Cant' functions, exactly, but it does seem to go through Akka's opponent's Wards. That whole battle (where Achamian is captured by the Scarlet Spires in Iothiah) makes me wonder how sorcerers would far against, say, a gatling gun or similar. Loud reports and continuous stress produced!
@MSJ I look forward to future sorcery battles, as well! We know of several different varieties already, all with different ways of focusing their intent. Do the Inchoroi use the Gnosis of the Nonmen, or did they come up with some new version as alien to the Schools as are their very alien thoughts? Aurang was limited before, by distance, when we've seen his. When he brings it up close and personal, I really wonder what his sorcerous arsenal will look like.
For that matter, do the Scylvendi have an analogue to the Schools? I don't remember if the Way precludes this or not. That could be another new weapon, too.