jtg452 wrote:Bar and chain shot are designed to disable enemy ships. That makes them easier to board and capture.
The Charisans don't want or need to disable enemy ships. They want to destroy them because their capture is of no benefit. The ships themselves are inferior in a multitude of ways and their crews would be a security risk to hold, a strain on manpower to guard, AND a strain on the economy to feed, clothe and shelter.
The most effective way to destroy a wooden ship- or more accurately, it's crew- is to aim 'between the wind and the water' and put holes in the hull. With the advent of the exploding shell, it is even quicker.
It's been a while since I read Safehold, but I distinctly remember many Charisian galleons being built from timber that had not dried out sufficiently. Those ships were expected to have a short service life and soon had to sacrifice cannons to reduce weight and strain.
The Temple galleons used properly dried wood and although the guns that came with them are inferior, cannon can be swapped around with relative ease. If nothing else, they're also useful as troop and supply transports.