I'd bet pretty decent money that an auto crit from a .223 pistol to the head would do consistently more damage than a p90c burst to mid tier armours+
Lolwhat? I'm x3 BRD, better crit and using grease guns, except for Hinkley, and if I won't kill someone with 1 burst from max weapon's range, then I'll at least KO it or leave with negative HP mostly because of tank build +Dead Man Walking and then just do regular burst to finish target (if only there're no 100500 militia chasing me at that time), because I never seen BA+psycho+max HP army of CS in BH sitting just to get influence and I'm not part of some TC faction to participate in TC, so I just kill chosens for fun at BH and not letting them get influence, as they aren't a threat for me, even with 500 HP solar scorcher militia, who dies with 1 1hex-burst too. However still I used single shots for tests on my friends, and... it's so so so underpowered in comparison to bursts, the only thing that it would save me 3 perks, so I could take lifegivers or may be even action boys or sharpshooter, etc. But still I see no reason to do head shots from SD when you can just burst your target with cheap grease gun looted from regulators and your victim won't die only if it's some BA psycho tank, but then you can repeat what you just done, and it'll die, or.. just use p90, then nothing will help your victim, even psycho and BA, as better criticals perk + SD make bursts really devastating, even with KO/KD effects. And I'm not using spray-and-pray perk, because of skilled trait, with this perk bursts would be even more devastating than now.
Return LK requirements at least for better crit and/or add it to spray-and-pray or SD, and SD sneakers will be nerfed a bit, at least they won't have 10 EN. As in Hinkley, with BA, even if someone spot me, I simply survive their burst and run away because of 10 EN. Anyway do something with better crit, may be more crit as requirement, because it's overpowered perk as all wipes before, but this session it also overpowered not only for snipers, but also for SD bursters.
Edit:
I haven't tested SD with gauss for single shooting, probably that's the only variant, because you can do these shots from 50 hexes without worrying about sensors and 10 PE SS snipers. But even .223 pistol... p90 is much better, even grease is better, a lot.