Triple Se7en
The .452 is the better bullet and the black sabot for the .452s are tougher than the green .430 - plus less succeptible to having flyers.... a common problem with the greenies and high powder volumes.
T7 this may not be totally true any longer -> MMP makes a Green HPH sabot which will hold high pressure loads easily... Granted the old green plastic sabot did not stand up to high volume loads.