Folks -
Thanks for all your replies. I have been hard at work roving the Internet and gun magazines, looking for the ideal caliber. Thus far, here are my impressions:
1) The .45 Colt can be loaded up to "run with" the .44 Mag. According to the highly respected gunsmith, John Linebaugh, as in .475 Linebaugh, to do so does not create high pressure issues, so long as the gun being used is a later model Ruger Redhawk or Blackhawk, or a TC Contender.
2) Loads of people disagree with John L., arguing that the 45 Colt has to be loaded to potentially dangerous pressures to achieve ballistic performance comparable to the .44 Magnum.
3) The attraction to the heavily loaded .45, at least for me, is the objective of heavy hunting load performance out to 100
yards with minimal recoil.
4) I'm undecided who to believe regarding the argument that the Colt 45 either does or does not have a weak cartridge. Linebaugh and his disciples argue that with Federal brass, the cartridge is plenty strong. Detractors argue that it "ain't a Magnum design", and therefore isn't as strong.
5) Other calibers? The 480 Ruger remains a real player, as does the 454 Casull. In both, I am not overly concerned with ammunition cost, as I plan to reload, and will only shoot the full house loads when hunting, or getting ready for hunting. So, I expect reasonably good brass life. In these bigger dogs, I am drawn to them, like many I suspect, by virtue of the fact that they have extended heavy duty hunting potential. With my feet firmly on the ground, though, it is hard to justify either when the biggest thing I'll hunt for now is a whitetail deer. (On the other hand, a V-6 would have gotten better fuel economy than the small block V-8 in my truck. I much prefer the V-8, even if it does cost me a few hundred more a year in gas.)
6) And the lead dog? At this mid-point in the race, well it's the one I started with, the .44 Magnum.
I haven't made up my mind, and perhaps in reading this post one of you will pick up a glaring lapse in my thinking. Any and all input is requested.
Thanks in advance. I'm off to my 3 hour Handgun Safety Course, required here in NY State before you can even apply for a pistol permit.
Regards-Mawgie