Easy. Because a lot of us like it and prefer the more Colt like revolver. For myself it is all the .45 Colt that I need... at the range... and in the field. Wish they would have done it years and years ago
. Therefore for me it is 'perfect' and glad that we finally have the .45 Colt (and .44 Special) on the medium frame. If one wants to shoot the real stoat stuff then there is the large frame .45 Colt BH revolver and of course Freedom Arms has what you need. Choices for all
. Yeeessss!
As for bullets .452 Lead bullets is all you need. The bore of all modern .45 Colt Rugers is .451. The idea is the throats should be at least .001 over the bore. Hence .452 is the optimum bullet diameter and why we ream to .4525 if throuts are undersized. But if you have oversize throats, the bullet needs to be sized accordingly for accuracy, so sometimes .454 bullets may be necessary to fit the throats properly. Simple as that.