THESE ARE HOT LOADS AND ARE INTENDED FOR USE ONLY IN THE FIREARMS LISTED
That caveat made, these are not really "hot" loads for the guns listed. They are very accurate through the guns noted.
I prefer #2400 in the .45colt. I get superior accuracy to either H110 or Hod LilGun.
I use 20.0gr of #2400 under a Lee 300gr FNGC (cast to 315gr w/gascheck).
I get 1,175fps from my Ruger Redhawk w/5.5"bbl.
I get 1,600fps from my Winchester M94 "Legacy" w/24"bbl.
Backing down to 17.5gr will net you the 1,400fps you are looking for.
Also very accurate is the 20.0gr load of #2400 under the Nosler or Hornady XTP 250gr jacketed bullets. This load runs about 1,650fps from the rifle, and 1,200 from the revolver. their 250gr. It is listed max for Contenders, Blackhawks in the Nosler manual.
I usually prefer to shoot somewhat lower powered loads however. These load are not really neccessary. I find a load of about 8.0gr of Hod. Universal under a 255gr WFN at about 950fps (from pistol) to be entirely adequate. (about 1,200 from rifle).