Let me try to shed a little light. At least this is my perspective.
Depending on weather conditions, hunting technique, my mood, or celestial alignment, I may decide to go out without a scope mounted on my Hunter. A shorter barrel is a plus when I want to tote the gun around with just the irons. My state mandates 6" min bbl length, so another gun with a 4 5/8 or 5.5" barrel is useless.
Add to that the fact that the Leupold 2x can be mounted atop the Hunter and still be back far enough to be protected from muzzle blast on a 6" barrel. And just about any red dot will be clear as well.
And finally, of all places, I thought this forum was a place that you didn't have to worry about answering the question of WHY
After swinging a 7.5" SBHH around all day I could see some interest in a 5-6" one. I really like the looks of the gun at both barrel lengths. I don't like the shorter one enough to spend hundreds of dollars to get there, though.
I have been looking at having MagNaPort shorten a Super RedHawk to 4.8 ". I want a gun for deer and bear that I can use a red dot on, but if I need to trail a bear, I want open sights. Also want an easier carry gun when shed hunting, etc.
I to really like the looks of that Super BlackHawk Hunter with the short barrel.
The gun in the other thread is mine. The "why" is easy...bacause I can That said, I like the look and balance batter than the 7.5" version, which I also have, and I can still use a 2x scope, if I want to. I did the work so the only cost was a little time.
I for one bought a SH Bisley Hunter to cut the barrel back to 5.5" for a easy holster pistol. Also could easly put a red dot on it. But wanted to wait till deer season was over.
But before I had a chance a Bisley 5.5" 45-45 converitable came around so I didn't have to. But if the convertable leaves I will do it in a second.
Why? Cuz i wanna. Cuz it's easier to carry. Cuz it's lighter. Cuz I like the looks. Cuz I don't need to use a scope or red dot just yet, but can later if I want. Cuz it'll be a short gun with a little extra weight to help with a steady hold. Cuz it's different and I haven't seen a thousand others that look exactly the same. Cuz...etc. etc. etc.