The original .30 carbine isn't a particularly powerful round, the .30 Super Carry is - apart from a few thousandths of an inch difference in diameter - a downloaded version of that. (Some folks say it was actually inspired by the old and relatively obscure 7.65mm French Long round. But it looks like a shortened .30 Carbine round to me.)
30 Super Carry
Bullet - 100gr
Case length - 21mm (0.827in)
Muzzle - Vel - 1250 ft/s
Muzzle energy - 347 ft-lbs
30 Carbine
Bullet - 110gr
Case length 32.8mm (1.290in)
Muzzle Vel - 1990 ft/s
Muzzle energy - 960 ft-lbs
Other than the bullets being in the same ballpark of each other they're totally different animals.
If it was in 30 Carbine I could see a use but it would probably have to be a locked breech design at that point which would probably raise the price considerably.
The whole point of 30SC is higher cap in a hand gun over 9mm. You're not getting that here.