I tried comparing stats of guns and staff to see the changes in my dps and dmg.
It show over -100 lost in both dmg/dps when I equip gun.
Staff- 470 dps / 66 int/ 62 armor - Duskbringer staff of warfare lvl 61
Gun - 360 dps / 66 int/ 62 armor - Duskbrinder Blunderbuss of warfare lvl 61

The "int"stat is same but why does the dmg reduce when switch from staff to gun? ;\