GarryB wrote:Given the cone of shot, that might be good for very close in work on a vehicle (that has some protection from falling debris) but surely a much longer barrel, like the one in my video, would be better for more general use?
The longer barrel would give better reach, which is more use when a person is swinging it around because you can hit and damage things at greater distances, so you can start shooting before they get so close their explosive might hurt you anyway, but for this sort of stationary mount it is more likely to be defending a vehicle or position, and while it probably swings round quite quickly some FPVs will get very close before you get the muzzle pointed at them... so the longer barrel would be a disadvantage.
A long barrel shotgun with a choke might spread its pellets or shot over an area the size of your hand at 5 metres... the advantage of the longer barrel is that all the buckshot will be inside a 1m circle at 20m range.... which means 12-16 ball bearings similar to a light 9mm round randomly scattered over that area... against a human sized targets and you will get some hits.
Just make me remember this video, in which the MC briefed about civillian long barrel bird hunting firearms temporarily displace combat shotgun in Ukraina due to the issues about anti-drone warfare.
https://www.youtube.com/shorts/TO_-ownZ3y8