Don't know if anyone knew, but the Sturmtiger in the current live patch can shoot beyond the 45 range at vet5. So it's 40 range extended to 45 with veterancy5 (and sight too) and it can fire to about 48 range.
Basically the AOE circle needs to be partially inside the max range dots, but not it's center. So the center of the AOE is outside of the 45 range allowing it nuke things out of the [already too large] max range.
It should at all vets have 35 max range and sight. Since it no longer decrews during reload, and it's max speed is quite high, a vetted ST is easy to keep alive which kinda makes the Summer update "nerfs" pointless. With vet it will again be able to self-spot at 40+ range.
Also you really need to address the fast fire bug. Managed to reproduce it by moving the ST, aiming outside of the max range and it would start the firing animation while driving into the range and instantly fire when the target is inside the range.
Of course, the bug is not there if the ST needs to rotate before firing. So just aim outside of the max range, ST begins the animation before it can even fire, and once it is inside the range, it fires instantly
I fired around the white dot, but it was beyond the 45 range. The center of the AOE circle was beyond and it still fired, rotated a bit but did not inch forward