"Eldritch Arrow
Least, 2nd; Blast Shape
This Blast Shape invocation allows you to shroud one arrow with your Eldritch Blast. As a Standard Action, you can make a single ranged attack with a Bow or a Crossbow. If you hit, the target is affected as if struck by your eldritch blast (including any eldritch essence applied to the blast). This damage is in addition to any weapon damage that you deal with your attack, although you need not deal damage with this attack to trigger the eldritch blast effect."
"Eldritch Bow
Lesser, 5th; Blast Shape
Your eldritch blast takes on physical substance, appearing similar to a Longbow. As a full-round action, you can make a single ranged melee touch attack as if wielding a Longbow. If you hit, your target is affected as if struck by your eldritch blast (including any eldritch essence applied to the blast). Unlike Eldritch Arrow, you cannot combine your eldritch bow with damage from a held bow or crossbow.
Furthermore, until the start of your next turn, you can make as many ranged attacks with your Eldritch Bow as your base attack bonus allows (including any extra ranged attacks, such as from the Rapid Shot feat or Manyshot). If you hit, you deal damage to your target as appropriate for a Longbow for your size, as well as any additional damage that might apply. For example, a 12th level Warlock could attack twice, once with a base attack bonus of +6, and again with a base attack bonus with +1. "
"Eldritch Archery
Greater, 8th; Blast Shape
Your eldritch blast takes on physical substance, appearing similar to a Longbow. Until the start of your next turn, you can make as many ranged touch attacks with your Eldritch Bow as your base attack bonus allows (including any extra attacks, such as from the Rapid Shot feat or Manyshot). For each attack that hits, the target is affected as if struck by your eldritch blast (including any eldritch essence applied to the blast), in addition to damage appropriate for a Longbow of your size, as well as any additional damage that might apply. Unlike Eldritch Arrow, you cannot combine your eldritch bow with damage from a held bow or crossbow. For example, a 12th level Warlock could attack twice, once with a base attack bonus of +6, and again with a base attack bonus with +1. "
There. Three homebrew feats for the Bowlock.
Does this help any?
Note:
Eldritch Arrow is just a ranged Hideous Blow.
Eldritch Bow is just a ranged Eldritch Glaive.
Eldritch Archery is basically, fire eldritch enspelled arrows away.