How do you deal damage with the peacekeeper?

@AymCTL You're not alone when you lose a fight because your 5 PK shots did 9 damage when it could have been way more. I've been there many times but after playing Pathfinder for a long time I realized that every time I grappled and got on the face of my opponent while moving forward the shots were more consistent. So when I have a PK now instead of strafing and trying to dodge the shots to then hit mine, I simply slide forward, ads and try to aim for the chest. It feels like the bullet spread it not that wide and I've been hitting more consistent shots that way. Of course, it's not gonna apply to every situation, but when you have a chance to slide forward and shoot instead of strafing, you should try that to see if it helps.