It's not an upgrade, but I was thinking a feat tree to reduce loading times so I
incorporated your idea. Crossbow Basics
Shot through the heart and you're to blame.
Prerequisites: Bows forte
Benefit: Crossbows you wield gain the bludgeon
quality and keen
4. You also gain a stance: Braced Reload (Stance)
: While in this stance, the load
quality of any crossbow you use decreases by the higher of your constitution or strength modifiers (minimum 1) to a minimum of Load
1. You may not take move actions while in this stance.Crossbow Mastery
In the hands of the untrained, crossbows are decent weapons. In your hands, they're devilish.
Prerequisites: Crossbow Basics
Benefit: When you wield a hand crossbow, it gains bleed
. When you wield another crossbow it affects your targets as if it were massive
. You also gain a trick: Nailed 'em (Bow Attack Trick)
: Your target also suffers the effects of a successful Cheap Shot
One shot, one kill.
Prerequisites: Crossbow Mastery
Benefit: Your crossbow attacks inflict an additional 2 damage and you gain a trick: The One with Your Name on it (Bow Attack Trick)
: Your attack gains keen
10. Immediately after this attack, you may make a Stealth check as a free action. If your attack kills your target, you gain a +5 morale bonus on this Stealth check. You may use this trick a number of times per scene equal to the number of Ranged feats you have.
ETA: Keen 4 instead of keen.