I am thinking of buying a 450 bushmaster .Is hornady the only ammo being made now ? I think the caliber is awesome just don't want to buy something I can't get ammo or brass for .I am not a big fan of hornady brass and i think Remington quit making ammo for it .I think you can make it from 284 brass also .The bullets are not a problem I think .I heard it's a good hunting round .