RW blunted arrows are usually used for target practice, and on occasion, to hunt small game- though in that case, you're trying to stun, not kill.
IMHO, a blunted arrow in an RPG would be limited to non-lethal damage, or perhaps doing minimal lethal damage- say, 1HP- if fired within 30 feet or so.
IMHO, a blunted arrow in an RPG would be limited to non-lethal damage, or perhaps doing minimal lethal damage- say, 1HP- if fired within 30 feet or so.