After the Italian capitulation in 1943, the Soviet Union was to be awarded a battleship from the Regia Marina as war reparations. However, due to concerns about mutiny from Italian sailors in the newly Allied country, a compromise decision was made the following year by the United Kingdom to transfer the old Revenge-class battleship HMS Royal Sovereign to the Soviet Navy on loan as a placeholder ship until the reparation issue was sorted out. After being transferred on 30 May 1944, the Royal Sovereign was renamed Arkhangelsk. The ex-Royal Navy ship, then the largest in the Red Navy, was assigned to escort Arctic convoys to the port of Kola.
The above quote is from the War Thunder Wiki.
And Hood sank on May 24,1941.
Therefore, Arkhangelsk’s use of MK XVIIB AP is consistent with history, and based on the balance of the game, Arkhangelsk will not outperform its Hood peers after releasing new ammo