Warspite's belt-fed 15-inch guns face reliability and heat limits

What if HMS Warspite's 15-inch guns were converted into belt-fed automatic weapons?

Foxo expects the belt feed to disable Warspite through unreliability; even a working system would face severe heating and metallurgical limits.

Foxo expects belt feed to make large-calibre automation so unreliable that Warspite could be taken out of service. If the hypothetical grants reliable operation, the resulting rate of fire would still create a severe heat problem. Operating the enormous breech would require a powerful mechanism, with gas operation suggested as an option. Making the weapon work would also demand substantial metallurgical advances. Its battlefield effect therefore depends on how much of the engineering problem the scenario assumes away.