Win. W231 is a fast burning powder, intended for light to medium loads in handguns. In the carbine for example the whole charge will burn in 5 to 8 inches, and thereafter the bullet will slow down. Generally speaking, high velocity loads combined with lead bullets don't work well from an accuracy perspective because of Marlin's shallow micro-grove rifling. I suspect that your Trailboss load may do better, both from leading and accuracy.
I'm sure there are better powders on the market now, but for medium and high velocity loads in .45 Colt old timers' prefered powders such as Unique and #2400. Try working up a load using 20 to 22 grains of #2400 powder behind that 200 grain bullet in the Redhawk and Marlin (not the Rodeos - they wouldn't blow up but the load might be considered abusive) and see what results you get.