Cummins I don't know but a 129 gr ABLR at 3400 fps doesn't seem very ho-hum to me....
Neither is a .270 Wby 130 gr bullet at 3375 fps.
Yep. Run the numbers for the 270 Weatherby with the 130 Berger Classic Hunter; they are right there with the 26 Nosler/129 ABLR at practical hunting distances.