I have an 1894 cowboy .357mag with a 24" barrel that I have thought about shortening but every time I pick it up and bring it to my shoulder I think nah I don't think so.
It would be a sin!
But it is your rifle so do as you see fit I say.
If your gun has a 20" barrel then I think cutting it to 16 1/8" would'nt be so bad.Just a little sin.But if it has a 24" barrel then.........??

Like oats through a horses ass, so are the days of my life