The fighter archetype, Crossbowman, has abilities called deadshot and greater deadshot. These abilities give bonus damage on crossbow attacks that come from readied actions.
This gave me an interesting idea that I could use to increase damage dealt to enemies with high DR, or with high dex-based AC. I was not able to find any restrictions on readied actions that would prevent me from declaring my readied action on the action of the next guy in initiative order. I would be able to get a deadshot every turn without losing my spot in initiative order.
The situation that I'm trying to clarify goes like this:
There are 2 people in the combat, it's a 1v1 where I use a readied action every single turn.
The condition: "if the enemy does anything"
The action: "shoot him in the face"
Theoretically I should be able to do readied actions forever, never losing my spot in turn order. This isn't exclusive to 1v1s, this would work in a fight at any scale regardless of turn order.
Is there any rule I missed that would prevent this?