I have a reference that the HMS Hero was armed with carronades on the FC&QD at Trafalgar. Wiki only gives the standard 9 pounders. Can anyone (DB?) help me out?

I realize that by asking this question I am admitting I don't have Adkin's "Trafalgar Companion" It is on my Amazon wish list I swear!

Also anyone have a suggestion for the gunnery factors for a British 80 gun design, i.e.; HMS Caesar? I was thinking of adding +1 chit for the first 2 boxes. She had 24 pounders on the upper gun deck instead of 18s. I guess the same could be asked about a 74 armed with 24lbers on the upper deck.

Thanks

Eric