There is a regional ammo manufacturer near me that produces good factory ammo, if there is not the type bullet you are looking for then email them and they will qoute you a price. You can choose from sending in your own brass (cheapest), choosing once fired brass (cheaper), or new brass about the same as regular ammo for the most part. I choose to go this route to get more bullet choices for my whelen.

you can find them at www.alabamaammo.com