All. New cartridges are wheel reinventions.7 REM MAG. BELTS MEAN LITERALLY NOTHING ESPECIALLY FOR A HUNTING RIG. Better performance also with 7RM. I don't get the PRC 7 anyways. We have 708, 280, 280AI, 7x57, what does it do that they don't. Maybe it's the action type. but performance wise it's covered on both sides of the prc. Different I guess.
I love 7 anything so heck why not it just do anything for ME..
Get the darn manufacturers to offer different throats and barrel spins, stamp the barrels, problem solved…..
6.5x55
7x57
06'
270 win, etc etc been around and very available