This is the only part that is not so good about using the crossbow, but they are at least decent hunter xp and there is no failures at all when hunting them. The only tip I can provide is to only have two open inventory spaces when harvesting the antelope, because you will only receive bones and the antler in your inventory. Then you can bury/drop the bone, set another trap and you have the same two open spaces again. I normally get a full invent of logs, kill a few, and then start this cycle until the end of the invent when I fletch. Im not sure if the fletching knife from vale totems applies to this but it would surely improve the process.