My 2nd duty gun was a 6" Python, which I still have. My 2nd duty gun was a 6 1/8" Model 66 (wish I still had that one!). After that department policy changed to 4" only. When I went to the academy and qualified on the range, with the Python, they accused me of cheating by using a "rifle". Everyone else carried 4" guns, mostly Smith 19's & 66's.