Stabilize DAMAGE

My damage is somewhere between 5500 - 6100 without powder using Admiral Cannons on NPC. How can I stabilize it?
I have 5/5 Point Of Agwe ( Abilities ) and 5/6 Sextant ( Castles) . If I upgrade the Castle will it help me ? Is there any other way to stabilize it ?

you need to buy the buff which gives you 10% more damage

any other way without any buffs :)

maybe the 5% pet

not 10% dmg but 10 % chance to hit ... pet 5 % , 6 % skills , 6 % castles and polished muzzle gives u + 10% on 14 days :)

ok :D thanks a lot.

there is no way without buff, to get the best without buff's you need: Castle (sextant); skills(agwe's aim) and equinnus(10% accuracy pet).
You can also also use a book, i dont know the english name, that will give you 10% more accuracy, but will take 33% of your range away, and its one item per shot, it's your call now.

thank you ;)

you can reach the maximum percent of accuracy at 90% without buff.(you need castle, talent and udine and of course elite cannons)
if you buy buff or use hailstorm(the "book" xcool meant) your damage will stick to maximum like 6100 all the time.

correction*** the maximum accuracy is 92% without buff but all the above. with buff you have 102% but this is mathematically not reasonable and you get 100%