Why did several pre-Perry American frigate classes carry 5-inch guns while Bronstein carried 3-inch guns?
Short answerThe reply points to gun development and the capabilities considered viable for each design, without a detailed class-by-class explanation.
NotesThe question contrasts the 5-inch guns on Knox, Garcia, and Brooke with Bronstein's 3-inch armament. The brief reply attributes the difference to weapon development, gun capability, and what was viable for the design. It does not compare the individual ships' weight or ammunition arrangements.