What are the pros and cons for each of these: .44 with a sabot, .45 with sabot or Powerbelt?

I assume you mean a 50 cal loaded with those three different components?

Assuming quality sabots made by MMP or Harvestor, what I've found is that the 44 sabots are not as accurate as the 45 sabots. IMO this is due to the thickness of the petals. With the 44s there's more plastic inbetween the bullet and barrel and more room for error due to the elastic properties of the sabot itself. With the 45s the petals are not as thick to allow for the larger bullet, the fit is more snug, and that allows for more consistency while under the pressure during firing. Less room for error IMO

PBs load easy but form to the barrel upon firing. Some folks love them and some hate them. They are quite accurate in some MLers. The biggest complaint you'll hear with PBs is how soft they are and how they lack in penetration.

Hope that helped

Reloader

Thanks. That's just what I needed.