i wanted to grab your attention to the most ridiculous build I did yet while trying to give ricochets another go.
apparently ricochets were redone at some point and received some boosts. Now you dont need to bother with trajectories. Once you hit the wall/ground by your target -> bullets become homing. All of them. And it doesnt appear that enemies can pull matrix dodges on bounced projectiles.
But wait, there is more - I have no idea what is base dmg of bounced projectile. Is it 100%? no Idea. Thing is you can raise it up with items(there are new muzzles), cyberware and perk. I can confirm that bounced projectile deals more dmg with investment. You can also raise some stats like bouncing angle and number of bounces(whatever, 1 is enough since they are homing)
mechanics wise it appears to hit targets that you can see, so you cant spray towards enemy hiding behind the obstacle.
Now what is the most riddiculous weapon to use? That would be
problem solver. It comes with 85 rounds magazine and once upgraded to legendary it provides highest number of shots per second. If you never played with it - you should. Experience is... something else. That being said I never tried using it with character high into assault tree, which provides plenty of recoil control.
Normally due to recoil that matches number of shots its hard to hit your target reliably - forget about full auto. Not a problem with ricochets - you can spray at the ground and you will down whole group of enemies. No need for using sights either.
You can do even more. If you invest 20 INT and get legendary shock - you will shock your enemies en masse.
And if you get 20 INT, did you try doing breach protocol with legendary blindness and weapon glitch?