so i recently made a goblin gunslinger with a high fantasy 20point buy for stats.
it looks to me that i can do potentially 154d6 of damage in one round by using double pistols.
let me explain.
1) I am a pistolero gunslinger. at lvl 20 i get +5d6 per shot by spending 1 grig using up close and deadly deed (would've loved to use signature deed or true grit on up close and deadly, but the pfsrd says that it cant be reduced to 0 even though the book doesn't say that so for difficultly sake im going with the pfsrd)
2) i have two weapon fighting and my off hand double pistol has. holy, flaming, corrosive and shock. my primary is a shadowcraft holy corrosive frost shock double pistol
that 2d6 from holy and 1d6 per elemental enchantment on that weapon and 1d6 for using small double pistols. totaling 6d6s without up close and deadly.
3) get 7 attacks off i one full round attack and 2 shots per gun(1 from each barrel) totalling 14 shots. i do this by have 4 shots one my first attack action of the full round attack. 2 shots from my primary and 2 from off hand. my second attack will another double shot out of my primary which doesn't need reloading due to shadowcraft(i needed this bc the GM set the number of free actions per turn at 3) giving shots 5&6, 3rd attack from primary giving shots 7&8, 4th giving 9&10. then i have the feat rapid shot giving me and extra attack which gives shots 11&12, and one final attack with boots of hast(which stacks with rapid shot) giving shots 13&14
4) the issue that i ran into is that in order to add on the extra +5d6s per shot i would need 14 grit. my wisdom modifier is at a +5 at lvl 20 so i take extra grit as a feat giving me 7 grit per day. so as a group we went on a quest for a +6 headband of mental superiority
so now i have 10 grit per day....i still need 4 more so we went to find a tatoo inscribe artist and i got a tatoo on my head of a +6 headband of inspired wisdom. so now we're up to 13 grit per day....just quest or somehow aquire a +2 tome of wisdom and understanding. 14 grit per day
5) every shot you take (14 shots, see part 2) spend a grit on every shot on up close and deadly. giving 11d6 per shot overall (1d6 for weapon +5d6 for weapon enchantments and +5d6 for up close and deadly) 11d6 per shot for 14 shots 11x14=154d6
6) pick up clustered shot to minimize any type of resistance or damage reduction.
did i misinterpret rules? or did i just successfully break the game without bending the rules?