I have a 27-2 5", my best friend has a Python in a 4" and 6". All three are in excellent condition. Shooting the same ammo the 27-2 5" seems to hold tighter groups (just barely) for both of us. The 27-2 for us seems as accurate as the 6" Python and a little more accurate than the 4" Python.
The triggers go to the Python (just barely). The 4" Python feels a little more balanced to hold. I know the Pythons worth alot more money. But we enjoy shooting our guns. I would choose my over these 2 Pythons because it seem like my one gun does the same as what both Pythons do. Of course, I my be a little biased.
I am very happy with my 27-2. I do have a question please, why you I see so few 5" barrels? Where they made for a special purpose or did they just not sell? Any suggestions for a good holster for the 27-2 5"