I had an 8 3/8" 27 back in the early 1970s, it shot great. I didn't have a lot of money back then and I ended up trading it on something new and shiny. Later I traded for an 8 3/8" 29-2 and about the same time I won an 8 3/8" 57 all of them shot well.
I found through a long period of learniing that I actually shoot short guns just as well and so normally I carry the shorter ones but I've killed deer and wild boar with most of the long ones.
I recently was missing my orignal M-27 and I had a Model 28 which I never even shot as a .357, I bought it to convert to a 1950 target in .45 Colt, and so I rechamberd a spare cylinder for that and then I bought anther cylinder and yoke and chambered that for .45 Auto-rim.
Recently I bought an 8 3/8" M-27 barrel off of eBay and I had yet another M-28 cylinder in .357 so I changed it again - the think can be changed in the shop in about 10 minutes - been thinking about a field change system but for now I will just leave it as is for a while since I have so many S&W in .44 and .45 anyway, and a few .41s
My converted M-28 isn't much to look at, but it shoots good.
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Oddly enough, a long barrel is no guarantee of faster loads - My 8 3/8" 29-3 is not a bit faster than my 4" 629, and my 6" Python is slower than my 4" S&W M-19.
Just Ramblin'
Riposte