EE,
The problem with H110 is indeed its narrow use range. I've been moving away from it for several years because of its general persnicketyness-- though my most accurate loads remain 140 grain cast bullets ahead of a book max of H110 (in both 2.5" and 6" Smiths). I now rely on 2400 and am recently trying Blue Dot--though, so far, I can't match H110's accuracy in the .357 (.45 Colt is another matter). I tried IMR4227 in some heavy bullet .357 loads years ago but wasn't impressed. Lots of unburned granuals and less than impressive grouping. Lil gun was another one I tried--gave it up because of very inconsistent results.
I have an old Shooting Chrony but don't know as I'd go so far as to recommend it. It does ok, but I've never tried anything else. I find clocking loads a little tedious.

Ella


I may have to dig it out and do some testing this summer.