You may have meant to compare the 28 Nosler (same caliber as 7PRC)? I have both. As KEC mentioned, the 28 Nos will have higher case capacities and velocities. Barrel life on the 28 Nos will be considerably less and it can be more finicky and temperamental to load for. Mine is sending 195 Bergers at 3050 and could go faster. My 7PRC is sending 180 Bergers about 2950.
If you want a screaming fast 7mm bullet, the 28 Nos is an option to consider. However, I think there are better overall cartridges for the caliber.