text: I sold 100rds of 300Rum back in January. Took it to the gun club and was offered $8.00 per round by I guy that told me they are going fir $10.00 per round. So according to him that would be $200.00 for a twenty rd box. He told me the empty brass was at $8.00 per round. It is very hard to find and expensive as hell. Glad I don't own one of them