Danger, Will Robinson.
Gunslinger's reloading information needs some qualifying. Hogdon's own manual lists 28.0 grains of H-110 with a 250 grain bullet as a maximum load generating 30,000 psi for the .45 LC. Also, the manual clearly states that this load is only for Ruger and Freedom Arms revolvers and should not be used in the new model Vaqueros. You absolutely cannot use this load data when dealing with older guns chambered in .45 LC or modern SAA clones. You WILL blow the gun up. This is precisely why Elmer Keith switched from heavy loadings in the .45 LC to using the .44 Special as a high-pressure test platform prior to the development of the .44 Magnum round.
The current Ruger Redhawk will handle these high-pressure loads but it is prudent to note that the .45 LC case is both thinner and weaker than the .44 Magnum case. So, if you choose to use heavy .45 LC reloads, your case life will be shorter than that of the .44 Magnum case. If you want atomic reloads in a .45 caliber then you would probably be better advised to get a Redhawk in .454 Casull. You could then have a gun with more power than the .44 Mag and the Casull cases are designed for high pressures. .45 LC will chamber and fire in these guns just as .44 Special can be fired in .44 Magnum guns.
The whole argument is a bit silly. Either caliber is perfectly adequate. Choose the caliber you like and run with it.
-Zimms