Barnes bullets are quite different, and require different load data. That's the reason for the loads you quote. The Barnes is a fabulous bullet, but may be more than you need. Try standard bullets first, and if they don't perform, move up to Barnes.
H4831ShortCut is the same ballistically as the standard H4831, but its shorter kernels take up less room. Load the same weight of each, and the SC will fill less of the case. That can help in cases like the 270, where the original powder sometimes ran out of room before it ran out of performance. If you load as far as the fence will stretch, the SC version will help. But if you don't push things, either will work fine.
Edit to add: Here's the
NOSLER PAGE for the .270