I pulled them right off the first page of this thread, but I still don't really know what I'm doing.
I mean wild animals are marginally harder to kill with .40 broken arrow wooden bolts than .40 vanilla wooden bolts, probably due to the lack of bone-shattering. Which is to be expected and good.
Raws for copy-pasta purposes
[ITEM_AMMO:ITEM_AMMO_BOLTS]
[NAME:bolt:bolts]
[CLASS:BOLT]
[SIZE:150]
[ATTACK:EDGE:10:1000:stab:stabs:NO_SUB:1000]
[ATTACK_PREPARE_AND_RECOVER:3:3]
[ITEM_AMMO:ITEM_AMMO_ARROWS]
[NAME:arrow:arrows]
[CLASS:ARROW]
[SIZE:150]
[ATTACK:EDGE:10:1000:stab:stabs:NO_SUB:1000]
[ATTACK_PREPARE_AND_RECOVER:3:3]
[ITEM_WEAPON:ITEM_WEAPON_CROSSBOW]
[NAME:crossbow:crossbows]
[SIZE:400]
[SKILL:HAMMER]
[RANGED:CROSSBOW:BOLT]
[SHOOT_FORCE:70]
[SHOOT_MAXVEL:200] This is just to make sure a near-weightless object doesn't go faster than the string could possibly go.
[TWO_HANDED:0]
[MINIMUM_SIZE:15000]
[MATERIAL_SIZE:3]
[ATTACK:BLUNT:10000:4000:bash:bashes:NO_SUB:1250]
[ATTACK_PREPARE_AND_RECOVER:3:3]
[ITEM_WEAPON:ITEM_WEAPON_BOW]
[NAME:bow:bows]
[SIZE:300]
[SKILL:SWORD]
[RANGED:BOW:ARROW]
[SHOOT_FORCE:50]
[SHOOT_MAXVEL:180]
[TWO_HANDED:0]
[MINIMUM_SIZE:15000]
[MATERIAL_SIZE:3]
[ATTACK:BLUNT:10000:4000:bash:bashes:NO_SUB:1250]
[ATTACK_PREPARE_AND_RECOVER:3:3]
Based on the advice of Pirate Bob, bumping contact_area to 10 for helmet/breastplate increased protection and upping the shoot_force for crossbows and bows (but crossbows more than bows, because natch). I'll test these a little more this afternoon and evening and report back, because partial armor penetration would be nice, especially when I put in FDII enemies a little later.