The gun can take it. The brass is the weak link.
Case life was shorter than a typical 44 mag case on all the brands.
That hasn't been my observation. Again, it all comes down to how generous the chamber is. For some reason on production .45 Colts (mostly older ones) chambers are extremely generous, far more generous than a .44 or .41 mag...I'm sure JWP or Whitworth may have an answer for why that is, but it is.
All else being equal, Federal or Starline .45 Colt brass will do anything that pretty much any other cartridge can do, and won't wear out any faster...again, all else being equal.
