Actually I found some really interesting notice in the topic about French 380mm guns dispersion:
Jean Bart’s 2 x 380mm gun salvos , fired on Nov 10th 1942 against CA USS Augusta from range ~ 18000meters certainly did not exhibit 450meters dispersions, as Augusta was nearly directly hit by the shells, and her decks were put awash. Out of 10 x 2 x 380mm shots salvos, the “last three” being “close straddles”. (according to Morrison, operations in North African Waters, pg 163)
PS2: Interestingly enough, an online book depicting Jean Bart’s sole turret firing against USS Augusta , shows guns being fired from odd and even barrels. I.e., gun1 with gun3 and gun2 with gun4. If this is a correct depiction of the actual firing being executed on NOv 10th, it may explain the better dispersion - then that exhibited by Richelieu , firing with gun1 and gun2 or gun3 with gun4 - as distancce between barrels was substantialy larger for the method employed on Jean Bart, and therefore shell interference was smaller. (“Operation Torch 1942: The Invasion of French North Africa”, by Brian Lane Herder, pg 58)
So as I know, Richelieu guns didn’t seem to have some dispersion problems by themselves, BUT it mostly was because construction of quad turret, that 4 guns (actually 2+2) were pretty close to each other and also questionable quality of shells
And in the game, trying to being into realism, developer’s dispersion decision is just to take the results of shooting test, and Richelieu showed awful dispersion results here, while firing gun1+gun2 and gun3+gun4 and again with questionable quality of shells. But unfortunately current strategy for dispersion doesn’t take into such nuances
PS. But anyway, I am really glad to have Richelieu in game, finally one French BB with really decent armour and survivability. Really the best battleship for France right now, feels so much better and reliable compared to Dunkerque
Though I also don’t really understand, why Richelieu has higher br than Vanguard. I mean, they are pretty much the same, Vanguard is better in reload, bursting charge, accuracy, belts armor, frontal armour, speed… So hm, what’s the reason?