Here's another "Balloon Buster", an unsung hero, but, I'll wager, not unknown to Forumites:
H. Weir Cook, the 'Balloon Buster of the 94th Hat-in-the-Ring!'
You can read about him in Rickenbacker's
FIGHTING THE FLYING CIRCUS (accurate, albeit ghost-written). Cook's score was 7 confirmed: 3 aeroplanes, 4 balloons.
His methodology? To gain altitude well above the target and to dive down almost vertically upon the gasbag. He was a thoughtful, planning kind, for he didn't like to or intend to make a second pass. (And he did use an 11mm m.g.-armed SPAD; I believe that's approximately .44 caliber)
He was the squadron's balloon specialist: relied upon to do a difficult job, to carry through on something that no-one else was particularly keen on doing.
You rarely hear much about such men, but they're the bedrock of any successful military operation...