As visible in the attached screenshot, i shot the tile directly down-right of the upper Wall Chamber's lower right corner using my Imp. KE Penetrator, which was as far as i could shoot directly up-right diagonally.
This hit the barely out-of range Wall Chamber, which i think is normal? But the projectile penetrated the first tile, which made it travel to the next tile(?) and broke it, which i'm pretty sure breaks the rules of how weapon range works.
I later tried to see if you could hit a stationary hostile by extending the range using this method, but i'm not sure if it worked, as it might have been an Infiltrator i didn't recognize as friendly because of only have an Imp. Signal Interpreter (I hadn't seen Infiltrators yet), who didn't move when i shot them because they weren't 0b10?