Is that because of cast shadows?
No a bullet has a looped traj so it could be the case that over distance the point of impact can vary considerably. If you set the beam for one distance, it might be off target at another.
It is a compromise between how big the centre spot needs to be. Tight spot for distance and wider spot to illuminate target and background to ensure saefty before you squeeze the round off.
The Deft is a good example. I use it for hunting as a search light. As it has basically no spill, it doesnt spook anything (until you get it in the beam) whereupon it gets an instant sun tan
Something like the new Olight ss90 whilst designed to be a thrower, is also very floody. It seems to me the SST is still orientated towrds flood rather than legs and of course, is of a dimension where rifle mounting become ridiculous.
When I first posted this thread, I was under the impression that the SST being a single die was going to be easier to make into a monster thrower. I think I was under a misapprehension.
Most gun mounted halogen lamps have very very big reflectors - inches not millimeters. The heads can be very light so it just becomes a bit unweildy. However, they are usually driven by batteries that weigh a couple of tons (4x4 cigarette lighter socket) or by sealed lead acid battteries that just feel like they weigh a couple of tons
The right bit of kit is out there. I reckon that a LED head for throw with the battery compartment in a remote position would be a cracker of an idea but I know of nobody who makes them? I find this strange especially in the USA where hunting is a major activity !