5.5" RH Seconded.
I have the 4.2" For me it's perfect.
The only length I'd be willing to go up to would be the 5.5". Still comfortable to carry for me, not to long for discreet carry (necessary where I live), but longer for a few more FPS, longer sight radius and a touch more recoil suppression!
Beyond that, I'd be looking at Super Redhawks. (That as well as someone in the market for a used kidney....
)
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When the right to effective self-defence is denied, that right to self-defence which remains is essentially symbolic.
Freedom: Please enjoy responsibly.