When I started reloading for handguns, Bill (Greybeard) told me all I needed was Unique and 2400 and for years I have been completely happy with that advice!
Now, I will admit I have added H110 (originally for the 500 S&W) and Trail Boss to that list, but I probably could live without both.
I guess handloaders just got to try new stuff!
Which brings us to the subject at hand. I see a lot of people rave about 4227. I also noticed that Load Data shows loads using it right up there in number with 2400 and 110.
Can y'all tell me why you like 4227 compared to the other two?