It was common for police officers to ream out the model 15 to accept the 357. A local cop here would do it for a reasonable fee.
The snub model 15 was especially desirable because we could not get the 2.5 inch model 19.
I do not recall them ever boring out a model 14. I do remember the discussion because I think the model 14 has a shorter cylinder and would not fit the 158 grain bullets in 357. Anybody actually have experience with the older pin barrel model 14s and the longer ammo?
Personally, I know there was different heat treatments over time. I am not comfortable firing a 50-60 year old gun sold as a 38 Special, with 357 mag ammo.
This discussion has come up with respect to the 38 Super. The 38 Super with moon clips is fast for competition, but must be loaded hot to reach power factor requirements. Many guns are modified for this, but they made lots of concerns about the model 14 at the 38 Super pressure ratings.
I would like to hear from people who have fired the 357 and 38 Super in these modified model 14s and model 10s, not just people speculating.