[PF] The Gunslinger's Handbook

[Andvare]

What? 1/4? So, 25%? Unless we're somehow ignoring the rules for rounding down, that will almost always (unless you're using a Fire Lance or a weapon that's already misfired) mean a reduction of 0. If there's a "minimum 1" clause though, that's pretty good. That means Dwarves could use paper cartridges without penalty.

It means that if you take that option for 4 levels, the misfire will go down with one.
Same concept as with Half-Elves and Eidolon Evolution.
Edit: And there will always be a misfire of 1.