this is a good question & both are fantastic cartridges.
either one will get the job done, which ever it might be.
the gun in the center is a .44 mag....
here is a ruger black hawk convertable (.45 colt/acp)
if you don't reload opting for the .44 mag would be the choice
simply because .44 mag ammo should be easier to come by, at least here it is.
you can also shoot the .44 special cartridge which is a throttled down .44 mag in shorter brass.
if you do reload then it really doesn't matter, but you must purchace a very strong gun like a ruger to be able to throttle up to the higher pressure rounds to match the performance of the .44 magnum.
which ever one you choose will be a great choice, but i will bet before long you will be thinking about the other. if you are like most of us, being addicted to the large calibres is a fun/good thing....
happy trails my friend!
Gunslinger,....you should show a picture of that perty "acusport bisley" again for us to drooool over,....Please!
ruffbird, (certified ruger nut).
