Originally Posted by bobbyjack
Originally Posted by Hoot
I think the model 25 is the same N frame as the Model 29 44 mag.

should be good.
WRONG The first N frames were the 38/44 ,which

were the first 357 loaded to near mag loads ,which brought about the REG MAG

that S&W brought out in 35,then the Mod 37,28 ect.

The Mod 25 though big framed will not take the high pressures the 29 will.

Many have abandoned there mod 25 because the 45acp has the same balistics.

Now the New Blackhawk will take any 45 colt loads you care to load!
Bob
The N frame was introduced by Smith and Wesson in 1907 with the "Triple Lock" .44 Special double action. That pre-dates the Registered Magnums in .357 introduced in 1935 and also the .38-44 Heavy-Duty in "38 High Speed" introduced in 1930. The Model 25 in 45 Colt was at first thought to be no more sturdy than a Colt SAA in the same caliber, which indeed has the same factory ballistics as a 45 ACP. In the past couple of decades though, due to research by Brian Pearce and others, the model 25 is thought to be able to handle higher pressures and take advantage of the 45 Colt's greater case capacity.

The conventional wisdom is now that a model 25 while not being able to take the pressures of a model 29 can generate velocities higher than one in 45 ACP.