I'd recommend figuring out which xbow you like to use before building one out.
All of the builds below have max accuracy if you have 0 armor penalty and stick with the WPF guidelines.
These are just 31/32 -> retire builds, builds planned on going 34 or above require a bit more min-max planning since they can actually use arbs at max accuracy + melee decently.
Strength: 21
Agility: 18
Skills to attributes: 8
Ironflesh OR Shield:4 (+3 for retiring at 32)
Power Strike: 7
Athletics: 6
Weapon Master: 6
Crossbow: (Lower value in range for +0, higher as you go up to +3) (Hunting crossbow 126-131) (Light crossbow 134-139)
Any Melee Skill: Rest (66-92)
Equipment:
2 slot Crossbow of choice
Steel bolts
0-1 slot shield of choice (optional)
0-1 slot melee weapon of choice
Hunting Xbow
Steel bolts
0-1 slot shield of choice (optional)
0-2 slot melee weapon of choice
Strength: 15
Agility: 24
Skills to attributes: 8
Ironflesh OR Shield: 2 (+3 if level 31)
Power Strike: 5
Athletics: 8
Weapon Master: 8
Crossbow: (Lower value in range for +0, higher as you go up to +3) (Hunting crossbow 126-131) (Light crossbow 134-139) (Crossbow 147-152) (Heavy Crossbow 166-171)
Any Melee Skill: Rest (72-144)
Equipment:
2 slot Crossbow of choice
Steel bolts
1 slot shield (optional)
0-1 slot melee weapon of choice
Hunting Xbow
Steel bolts
1 slot shield (optional)
0-2 slot melee weapon of choice
Strength: 18
Agility: 21
Skills to attributes: 8
Ironflesh OR Shield: 3 (+3 for retiring at 32)
Power Strike: 6
Athletics: 7
Weapon Master: 7
Crossbow: (Lower value in range for +0, higher as you go up to +3) (Hunting crossbow 126-131) (Light crossbow 134-139) (Crossbow 147-152)
Any Melee Skill: Rest (79-121)
Equipment:
2 slot Crossbow of choice
Steel bolts
0-1 slot shield of choice
0-1 slot melee weapon of choice
Hunting Xbow
Steel bolts
0-1 slot shield of choice
0-2 slot melee weapon of choice
Strength: 12
Agility: 24
Skills to attributes: 2
Ironflesh: 4
Power Strike: 4
Shield: 5 (+3 if retire at 32)
Athletics: 8
Weapon Master (if not horse xbow): 8
Crossbow: (Lower value in range for +0, higher as you go up to +3) (Hunting crossbow 126-131) (Light crossbow 134-139) (Crossbow 147-152)
Any Melee Skill: Rest (115-144)
Equipment:
2 slot xbow
Steel bolts
0-1 slot shield
0-1 slot melee weapon of choice
Hunting Xbow
Steel bolts
0-2 slot shield of choice
0-2 slot melee weapon of choice
Strength: 12
Agility: 24
Skills to attributes: 2
Power Strike: 4
Athletics: 8
Riding: 8
Horse Archery: 4
Weapon Master (if horse xbow): 5 (+3 if retire at 32, go up to 139 crossbow for +3 light xbow use or just dump all in melee)
Crossbow(if horse xbow): (Lower value in range for +0, higher as you go up to +3) (Hunting crossbow 126-131)
Any Melee Skill: Rest (66-77)
Equipment:
Hunting Xbow (light if retire at 32)
Steel bolts
0-2 slot melee weapon of choice
Any horse (or just scavenge)