Ah cool. I'll have to edit my post about the "Planet Killer" BFG supplement, just to clean it up and add a bit of speculation on what shells do.General Donner wrote:Good find with the Cadian Blood one. I don't have that book, but I believe I do have "Gray Hunter" around (that's from the Space Wolves books, right?). If I can find it, I'll see if it has anything to say about nova cannons.
I'll also change a few things again to the display system for the head document, and make sure that "mechanism" and "yield" get different enough if they have to remain as separate sections. The reason I removed "type" was because some designs were sufficiently odd that there was no real way to make a quick enough description without going into the details of the design. But the simplicity, if not the clarity at least of other references begs for a "type" section, especially with the "Planet Killer" material.
I'll also point out that the Cadian Blood shell are not true Grav shells, as the later definitely have some limitations like the instability and release of matter that the shells in CB don't display. Perhaps the CB shells are more advanced, but what they seem to do is pull stuff into Lalaland, and that's generally better explained with some Immaterium related phenomenon. The problem being the lack of any description of a typical Warp window opened at the point of impact. Technically, there's not even a single mention of light. So with both light not evading the singularity, but its range being definitely limited in some odd ways, and all of that disappearing from existence, we may be dealing with some odd mix between a vortex shell and grav shell, where time and space are so fucked up that somehow the light emanating from the Warp window can't escape the singularity, even if the singularity has to be tossed into the Warp: basically, in its final moments, the singularity belongs to the Warp, yet any light that comes from the Warp is also sucked in. Perhaps both the Warp fissure and the collapsing gravitational singularity close at the same time, or very close, and as thus, lingering gravitational effects and faint light levels make it appear like there's no bright flash.
Constraining the light, matter and even gravitons to some fixed radius seems to be a far more advanced variant of the mechanism that enables some plasma/vortex grenades to have a fixed disintegration range.