I've also used both with similar result. H4227 has been around for a long time. I've had excellent results with it, although I think it burns a little on the dirty side. Magnum primers have helped a bit with this. IMR4227 works well in my 38sp, 357, 44sp, 44mag and 45LC. I use it in my .44mag puma 92 when I can't get No9.
Shootmup
Shootmup