The United States, Russia, Italy, and possibly China could rebuild a large-gun capability, but none could simply restart an old production line. The limiting system includes huge tooling, controlled alloy production, heat-treatment furnaces, armor-grade steel, precision work, and the tacit knowledge needed to turn documentation into repeatable manufacture. The discussion distinguishes possessing drawings from sustaining an industrial ecosystem able to produce reliable guns at scale.
Notable Point · 2:01:10-2:26:38
Could modern industry build battleship guns again?
Several questions examine whether any present-day country retains the tooling, metallurgy, furnaces, and practical knowledge needed to manufacture battleship-caliber naval guns.