I don't know if this helps but I know that the 470ne, 450 Akley, and 458 Lott are pretty similar as far as ballistics, stopping power...ect. However, price and availability on ammo is a different story. I haven't researched 470ne ammo but I do know that Cabella's has it for 215.00 dollars a box.....20 rounds that is. That 458 lott ammo for 56 bucks isn't looking so bad

I just wish that they made an affordable double rifle in 458 lott, it would be a lot cheeper to shoot!!!