I did email Ramshot and got this very nice reply from Johan Loubser, their ballistician-

"Yes that load will be fine. However, if you really want super light loads we recommend using our Accurate 5744�.
With this powder you can really cover a wide velocity range.
We suggest as follows.
Caliber: .270 Winchester
Barrel length: 24�
Reduced loads:
Powder: Accurate � 5744.
Bullet weight: 130 grains.
Low load: 20.0 grains (1700 � 1800Ft/p/sec)
Midrange load: 29.0 grains (2300 � 2400 Ft/p/sec)
Maximum load: 37.0 grains (2700 � 2800 Ft/p/sec)."