Grendel as a Universal Infantry Cartridge

[Tony Williams]

Even if I waved a magic wand and took the Israeli (stolen tech from US, France, Germany, South Africa) and miniaturized it into something no larger or heavier than an Eotech, the basic premise by which it operates is flawed for in at least one major way: bullet trajectories are not linear like a laser, so the higher area of their flight path is where you need to compensate for wind for long-range shooting, not what is just seen along your line-of-sight.

That's a good point. Although to be fair the target is a 65% first-round hit probability, not 100%!

If a device like this enables the average Joe to get the bullets in close proximity to the target, that may still be worthwhile.