It's no secret that the straight wall hunting rifle cartridge is blowing up. Remington has been manufacturing ammunition in the two most popular straight wall calibers, 350 Legend and 450 Bushmaster, for a while now. But now, they've decided to throw another competitor in the mix with a new cartridge unveiled the week before SHOT Show in Las Vegas. The new cartridge is called 360 Buckhammer. Read more from Wide Open Spaces below.