It handles a .30 caliber bullet, its lighter, a bit faster, so it just a bit flatter. Great cartridge not as much recoil as .338 but devastating just the same. It has some reach out and touch them with authority. You can hunt just about anything in the USA with it. Try one I think you will like it.
ramey the BEST bullet for 300 ultra is a 220 SMK. haulin but with plenty of energy, pretty flat shooting at 2900 FPS. Only 1 problem, if you dont have a brake you will hate it