Herters Ammo--What's It Worth

I just bought three full boxes of vintage factory-loaded Herters 300 Win Mag ammo at an estate sale. Ammo is in great shape but boxes are a little worn. I've got lots of 300 Win Mag ammo and will probably sell this stuff on GunBroker. I was just wondering what it might be worth? Would it be of more interest to shooters or collectors? I've heard the brass was made by Norma, so perhaps I should just keep it, shoot it, and reload it for my own use. Any thoughts?