I have heard of an arrow design using a golf tube that is used in Dagorhir and SCA. I am not overly familiar with these arrows myself, but I understand they are generally considered to be more safe and snap-resistant than standard Bel arrows (But they are bulky and ugly looking).
I haven't heard much mention of such arrows in Belegarth. The only mention of them I was able to find on our forums was on this thread:
viewtopic.php?f=85&t=35285
(...) Nor will I have to be all * when people stomp them, and they don't break. The thing is, while the old tech may have been awful, the Kutriguri have some absolutely AMAZING golf tube arrows I exchanged fire with last Rag, and they fly like a dream, don't break, and are VERY safe.
Anyway, on to the question. Would such arrows be legal in Belegarth?
Sample design and pros/cons:
http://www.zine.angaron.org/article.php?entry=43