Cap n Ball revolvers

[Mr. 16 gauge]

I already have one (an 1858 Remington), but I have been thinking about adding another one to my collection. I got out the Cabela's catalog and I see that they have an 1851 Navy with white grips that looks pretty neat, and they also have the 1860 Army revolver as well. I already shoot a .44, but I guess it's no big deal to buy another bullet mold

Any particular reason you would choose one over the other, other than asthetics (mechanical soundness, accuracy, ect)/

BTW: What diameter ball does a .36 cap n ball revolver take? My '44' takes a .451" diameter ball.