I was not aware revolvers were caliber specific.
Now I understand your question. I really did not before.

I was not aware revolvers were caliber specific.
Model 27 is a .357 Magnum, the Model 29 is a .44 Magnum. Both use the same frame ("N" frame), but the M27 has a tapered barrel, the M29 has a straight, heavy barrel.
Are you by chance meaning the difference between the M27 and M28? They are essentially the same gun, but the M28 is a "budget model" intended as a lower cost gun when purchased by an individual police officer or in bulk by departments, for law enforcement use. The M28 has less of a polished finish and fewer available options than the M27. I forget the price difference, but it was significant enough for police departments to save quite a bit when buying a group of them, and by an individual officer, when the M27 was a significant portion of a weekly or monthly salary.
You would be amazed at the similarities of many of S&W's revolvers and wonder why so many different models were produced when one might be "enough".
The K-22 Masterpiece models are a case in point, and guns like the M64 and M65. You could argue, why make a .38 Special, when you could just build a .357 Magnum and be able to shoot both rounds from the same gun.
I think many times, we assume most everyone on a S&W forum knows a lot about S&Ws. We forget everyone else in the world aren't gun nuts like many of us are.
Sometimes we take a question as being in jest when it is a legitimate question. We must apologize for those mistakes and make everyone feel welcome.
Rosewood
I'm not gun nuts, I'm just plain nuts! so I've been told......{she may be right)
I know that in the late 70s when I as a young officer wanted a .357 I was able to trade my .38 M&P and a Remington 870 for a M28 and leather. I was offered a 27 but would have had to throw in my pickup. Pay wasn't what it is today back then.
You're catching on just fine. Nobody was born knowing this stuff. It's not rocket science but it's not common knowledge either.... I was not aware revolvers were caliber specific. Or is that a true statement?
Truer words were never spoken. Just look at S&W's half-baked attempt at logically designating their stainless steel models....
As you learn more about SW history and compare each models features it all starts to make more sense although some things SW did made very little sense.
Nor will it ever be, and the prices haven't changed much either, except they're a lot higher, even accounting for inflation. I paid almost as much for my M27-2 as I did my first new car.I know that in the late 70s when I as a young officer wanted a .357 I was able to trade my .38 M&P and a Remington 870 for a M28 and leather. I was offered a 27 but would have had to throw in my pickup. Pay wasn't what it is today back then.
..... Just look at S&W's half-baked attempt at logically designating their stainless steel models.
The stainless version of the 27 is the 627.
The stainless version of the 29 is the 629.
The stainless version of the 25 is the 625.
So now we expect the stainless Model 10 will be the Model 610.
Wrong! The 610 is a stainless N-Frame chambered for the 10mm cartridge.
The M10 is a K-Frame and the stainless version is the M64.
You may be able to make sense of this historically, but not logically.![]()
Don't get us started on Glock's numbering scheme....
Now you done dunnit!...Don't get us started on Glock's numbering scheme....