I shoot all kinds of reduced loads in my .44 Mag Redhawk. Best thing you could do is buy a good reloading manual and read up on reloading procedures and recommended loads. There are certain powders that should not be used in reduced loads and others that work fine. Case life is great. I can't remember the last time I threw away a damaged .44 case.
Yes it is a straight walled case and if you use carbide dies you don't even need to lube the case prior to resizing. There is a ton of more information that could be shared with you but as I said studying a manual would be the way to go.
BE HALF THE MAN YOUR DOG THINKS YOU ARE!!
2005 Co-Champion Series 2 Scope Class/Unmodded Barrel