What is the weakness of R&R though? Because even with the biffs to the other weapons you suggest, the R&R is in the "Goldilocks zone" of having just enough spread, just enough RoF, just enough range and more than enough damage that even if A) The Novera hitting more targets, B) Eager doing massive burst and C) The SD doing the most damage, say 100+, with more range at faster speed, the R&R still is the best bet.
the reason I say this is because once you do good damage at a safe range compared to the other weapons. So why would I choose SD if it hits harder when I can be further away with decent enough damage at a higher rate of fire with R&R? Why would I choose Novera if the spread on R&R is STILL decent enough relative to the more tons of damage I do with R&R? AND at a safer distance? Eager probably would be good if you could blast a fool with one clip though. This is why I think it need damage drop off a bit to give it a weakness compared to the other guns. In your example you gave, the buffs you gave were all really good, but the weapons still all had weaknesses. R&R still not having any relevant weaknesses, again, being in the "Goldilocks" state where, in your scenario, it may not be the best (well range), but it is damn good enough in RoF, damage, spread and range that it is better than the rest still.
So I have a new question, what should R&R's weakness be? And do you feel the weakness it has is potent enough to make it balanced with the rest?
I'm sorry to dig your brain here. I'm just trying to surgically get to the root of the weapon and place all the parts on display on these forums so the devs can see. Thanks for playing along.