Definitely oriented towards established competitions, but they have this sort of example on their “screens” page…unless that is some overlay function
Well, it appears I mis-spoke. I know some of those disciplines are definitely one-shot-per-target... but I know some of the others most definitely are not.
That said... the whole 'hole in hole' issue is precisely why disciplines like F-class skipped right over the optical target scan thing. Shots can and do go through the same hole, and given how hard it is sometimes for a person, physically standing in front of the 6 ft x 6 ft target frame, to find the shot hole when it does something evil like go right through the '0' of the "10", or through the upper loop of the "9" or the "8" (contrary to what Cortina & YT might lead you to believe, not every shot is an 'X' - particularly when you're shooting FTR), or in a wrinkle in the target face, or even just creasing the hole from the last shot.
The only way to resolve a hole-in-hole situation with an optically scored target, whether manual or computerized, is to have a moving backer, like they use in short range BR (and some forms of Olympic rifle/pistol) so if you only find 9 holes in the target but the shooter claims 10 were fired... there better be 10 holes in the backer sheet. Even then, there is a certain amount of 'assumption' about where exactly that shot went - which hole did it go through, or if there is one big ragged hole, where in that blob did the shot fall. For casual shooters, it's not a big deal. For disciplines where whether or not the bullet hole touches the line means the difference between first place or somewhere way down the list... it's a little more serious.
E-targets handle that, because every shot is recorded on its own, regardless of the physical appearance of the target face... but now there is some amount of instrumental error or statistical uncertainty as to the *exact* location of that shot due to the nature of how the sensors actually work. Pick your poison.
