Originally Posted by Geezer57
Handgunners, unlike many other gunpowder infantry, have enough morale to take most cavalry charges, especially if set three ranks (or more) deep. At three ranks, they "ripple fire" quite quickly, keeping the enemy fearful. And they actually have a positive attack factor, so can deal out some damage in melee.
I've fought a couple of campaigns where I used hangun-heavy armies - all my melee infantry were handguns. They'd get close, fire a volley, and charge in - it worked surprizingly well, considering they're such an under-rated unit.