Free: Contests & Raffles.
I am not up on the 45-70 ammo other than the fact that it is pretty cool!The 30-06 ammo with the black tips is AP (Armor Piercing) and is quite collectible. In good shape it can easily be worth $1 per round or even more. I have seen it listed for $2 per round.
@ Jrebel, We were/are interested in selling it, but when I started looking into some of it, I realized I needed to know more about the 45-70 ammo at least. Those old boxes are intriguing. He was in his late 80's when he passed away, so some may have come from his father, or he may have picked them up just to collect them, I don't know, but I don't feel like I can just sell off the 45-70 without learning a bit more about them. The rest of it I'm definitely interested in selling once I get my act together on it.