I'm mainly asking for if it feels overpowered compared to their baseline counterparts, underpowered, or just about right to represent the tradeoff of more close-range damage but unable to hit farther out. Mainly gameplay feel, since we don't have the mathematical formula to determine how they assign Gunnery stats like we do for WGF and WGS.

Frankly, I'm somewhat dubious about the objectivity of the entire existing gunnery system including ranges, (a 32# should WELL outrange a 6# but a 6#-armed sloop, 12#-armed frigate and 32#-armed SOL all have the same weapons ranges on the ruler), but for quickly capturing the feel of AoS it seems about the best they could do for a "no-dice, beer-&-pretzels, 1-stat-line, basically WGS At Sea" system. For the more hardcore sorts, there are table-based rulesets out there...