Yes.
Ranged weapons with abilities like Flaming and Igniting apply this ability to the ammunition. There is nothing in the Endless Ammunition description that says it cannot be enhanced with abilities like this.
Don't forget, your hand crossbow must be at least +1 before you add these abilities to it, making it effectively a +1 Igniting hand crossbow of Endless Ammunition which costs 50,400gp, is +1 to hit, does 1d4+1 + 1d6 fire and ignites the target on a critical hit, and never has to be loaded with actual ammunition.
That's a steep price for that. Are you sure you wouldn't rather pay just 18,400 for the same thing without Endless Ammunition and then carry around some bolts for the hand crossbow?
Wow. Endless Ammunition is crazy overpriced.
Considering abundant ammunition is a first level spell with 1 minute/level duration, requires no costly components, and is available to the majority of the most popular casters, I suggest acquiring a source of that effect instead. At worst, bribe the party caster with cookies or something.
An ioun stone that allows you to cast Abundant Ammunition three times a day as an SLA, or a wand of Abundant Ammunition with a minimal investment in UMD, is a better choice than buying the Endless Ammunition enhancement - at least until you're at very high level and don't care about money.
Iuon stones or wands are abysmal wastes of money for this. Crossbow bolts cost 1/10 of a gp each. Spend a 100gp to buy a thousand bolts at level one. Now you don't have to track ammunition. Sometimes magic really isn't the answer.
And you're carrying them ... HOW?
Iuon stones or wands are abysmal wastes of money for this. Crossbow bolts cost 1/10 of a gp each. Spend a 100gp to buy a thousand bolts at level one. Now you don't have to track ammunition. Sometimes magic really isn't the answer.
Hopefully that level 1 crossbow user can lug around 100 lbs of bolts without a problem.
@Zhayne\Arex_Tron: Exactly. Every 10 crossbow bolts weigh a pound. Buy a thousand of them - you've got 100 pounds worth of crossbow bolts.
Ignoring the logistics of actually just storing that many bolts on your person, unless you've got a 19+ STR (which would be sort of silly if you're relying on a hand crossbow), your ammunition alone pushes you into medium encumbrance.
It's not the weight (although 100 pounds can be a lot for some characters), it's the size. Even if you only carry 1 quiver and put the other 980 bolts into backpacks, you still need like a dozen backpacks to hold them all. That's a lot of backpacks piled onto your body.
I agree that Endless Ammunition is overpriced. I think maybe a flat price of +2,000gp or something like that. That would be Abundant Ammunition at level 1: 1x1x2,000. But then that seems underpriced. So maybe +4,000 or +5,000 would feel more appropriate. But that's just me kicking around a houserule in the Rules Questions forum where it doesn't belong...
+1 is a +1 bonus (duhr)
Igniting is +2
Endless Ammo is +2
Total +5
according to the chart, that's 50 grand, plus the cost of the masterwork weapon to put them on.
A hand crossbow costs 100g, and before you can magically enhance a weapon it must be masterwork, which is another 400g. Then, before you can add any enhancement effects to it, the weapon must first have a +1 enhancement bonus added - that's 2,000g. Endless Ammunition is a +2 equivalent, so now you're paying for a +3 weapon - 18,000g. Igniting is an additional +2 bonus equivalent, making it a +5 weapon - 50,000 gold. . Total cost = 50,400g.