Gunslinger Build (Lv. 10-200)

Just tested by myself without the Fraps lag or anything and I use exactly 264 bullets per minute spamming Triple Fire. 88 shots per minute.

Edit: Now that I think about it, I think the main reason this seems so slow is because the attacking speed didn't change between Double Shot and Triple Fire, so it just added on another bullet without making it go any faster. Double Shot during second job is the crazy fast skill, while Triple Fire makes up for the slower speed with a lot of extra damage. Right now, with "average" equips, I can hit up to about 6.4k total damage (2.2k per bullet) in one Triple Fire attack, and the skill is only level 10.