I can't find my manual. A family friend just bought a Tenpoint crossbow. I might have helped him with his decision.

He is looking for bolts and broadheads for his new instument of destruction. I told him to make sure he didn't go below 430 gr. between the bolt and BH. I can't find my manual to make sure I was right. Did I tell him the wrong info? Alsodoes Tenpoint recommond a BH ?