I'm a newbie to handguns...

I have my mind set on a Single Action Army revolver, specifically, a Uberti Cattleman with 7.5" barrel.

My question is, if I buy the Cattleman in .357 magnum, will I be able to fire the .38 special through it no problem?

I'd love to get it in 45LC, but 45 is so expensive, so I figured shooting .38 special would be more affordable.

Anyway, I just wanted to confirm that if I bought a Cattleman in .357, that I could indeed shoot .38 specials through it, instead of .357?

If it's designed to shoot .357, will firing .38 special decrease accuracy or something? Or is there no difference?