I'm loading for my 7mm remington mag. I have probably 18 brass and 12 nickel plated brass. Long story short, I need more brass. I can get new brass for about 50 cents a peice at Bass Pro (best I've seen for new brass in smaller quantities). Loaded ammo costs a bit more than a dollar/round (probably $1.20/round with tax.) The bullet and powder cost me about 50 cents. The price really isn't that big of a difference to really matter. I guess I'm asking if there is any real downside, other than cost, of simply using factory ammo brass.