3* no never seen one as a drop in well over 700 hours! But you do not even need this anymore tbh. With the right Perk Cards & Buffs the std weapons are almost as good
For example. When we clear out Tek Systems together (you can easily do it Solo now though) pick up a lvl 50 from the Super Mutants (easiest place to get one which is guaranteed as a drop every single time). Repair it with the +3 200% Weapon Condition Perk Card & also at the same time be wearing the +2 INT PA Helmet (Internal Database) & apply any Chem Buffs to get your INT over 20 although on mine for instance I am always +20 INT without any Buffs bosting it further
Now when you repair the lvl 50 SS it should give around 240-260 DMG per hit which is good as its also very strong & lasts forever if you have the right Perk cards. The trick is make sure you have these Perk cards enabled:
Expert Slugger +3
Martial Artist + 3
Incisor + 3
Night Person + 3
Nocturnal Fortitude +2
Lifegiver 3
Tenderize +3
Makeshift Warrior + 5
Weapon Artisan +3
Power Smith +3
Power Patcher +3
Adrenaline +5
What these do combined is allow you to use Power Armour (this is all built around having decent PA for protection) which is virtually unbreakable & requires minimal repairs. When I have all of these enabled when I run at an enemy & swing the SS after the 3 hit on any enemy the Adrenaline +5 Perk card means its dealing +60% more DMG so combined with the other Perks above it gives up to 520 DMG per swing
this means I can run at any lvl 68 Super Mutant & 1 hit kill them if I also have the ignore 75% of their Armour Perk enabled
Now I also have the Grognak Axe 1* which I got as a random drop when clearing outside Tek with you!! (ALL of these are totally random drops but having found 1 & or having it on you increases the chance of getting another! I have found LEG drops from containers or just lying around its all so RNG!!). My Grognak does not quite get to the same DMG as the SS & it breaks easier so not that great although I am sure 2-3* would be better. Although saying that I took a lvl95 SBQ out with my Grognak the other day in 2 hits with the Perk card to apply 100% DMG if the enemy is 100% Health
but cannot say for sure if it was that or the other players with higher lvl DMG weapons!
Anyway with all of these Perk Cards combined & you also mod the SS to have either a Rocket or other DMG mod like the Heating Coil to further increase DMG making them almost invincible & they require minimal Repairs.
IMO LEG require more repairs they are no where near as durable as non LEG modded weapons. I did once have a 2* Bloodied SS but it broke
Who needs 2-3* LEG yes they are better overall but not sure worth the extra Caps to buy just see if you can get as a drop or do what I do put everything into PA & Melee build with the right perks you get around 520DMG per hit which is more than enough for most enemies & also requires little to no repairs so takes a lot of hassle away
this is why I also now buy all relevant Plans & Mods I can afford to try & unlock a few more % DMG mods as when its Buffing & the +60% DMG Adrenaline Perk kicks in that obviously stacks so the increase of a few % extra DMG becomes much more as its multiplied by whatever Perks & Buffs boost it further to