Don,
Here are a couple of loads using 2400 in the .44 Mag.
BTB .432"-300g LMNGCDCG/18.0g 2400/WLPP/Rem Brass/1291 fps/7.5" Ruger SBH
BTB .432"-325g WLNGC/16.4g 2400/WLPP/Rem Brass/1232 fps/7.5" Ruger SBH
<span style='color:red'><span style='font-size:9pt;line-height:100%'>Use Only In Ruger Revolvers Or Contenders!</span></span>
These loads perform pretty well, but my preference is to use H110/W296 on these bullet weights.
Enjoy!
God Bless,
Marshall