There aren't that many people level Rangers anymore. Even people with Rangers aren't using them. This makes the high level ammo market for Rangers pretty dead. Anything above demon arrows and silver bullets level are pretty much non-existence or just over priced. It's obvious because there are very few buyers so craftsmen aren't making them.

People who want to level Rangers will usually have to make their own ammo if they want the best possible ammo. My attempt to make the new ammo for myself has proven to be overly difficult as well. Not only I need multiple crafts at high level (ex: Antlion Arrow) that I will not have if I already have a high level craft, I also need decently high synergy skill to make them effectively - this makes a high level crafting mule pretty useless.

Perhaps SE should consider lowering the difficulty of ammo making? From Arrow, Bolt heads and ingots to arrow wood; those materials craft level should also be lowered to a reasonable level that you don't have to get a new mule to level.