For the simple reason that a brass frame is far softer than a steel one. And with the added pressure of a cartridge load the brass frame will distort or even in some cases completely fail, making for a very bad day.
The frame is the central part that the grips, trigger, barrel, and cylinder are all attached to. Is it made of brass or steel?
Check the frame and crane area.
There are conversion cylinders out there, check midway usa and dixie gun works. they are maker and model specific The only no no is brass frame revolvers, they should not be converted due to the weakness of the frame. In a very short time the brass will distort enough to become very dangerous and in some cases have catastrophic failures.
N is the designation of the type of frame the gun was made on. J is for small revolvers(Model 36,37,38,40,42,49,60,etc.) K is for medium frame revolvers(Model 10,12,13,14,15,17,18,19,20,etc.) L is for intermediate frame revolvers(Model 586,etc.) N frame revolvers were originally for high velocity,high pressure cartridges.(.357,44 magnum,38-44 high speed) For a long time, they were the largest frame revolvers made.(Model 27,28,29,57,58,etc.) Now, Smith&Wesson make the 460 and 500 magnums. These are even larger than the N frame. N prefix is the N series which startet in 1970. Best TrophyMatch45
A "J" frame handgun refers to the Smith & Wesson small frame revolvers such as the model 36 and to any other handguns of that size (Taurus, for example, has a virtually identical revolver) which are build on the J size frame. S&W makes K, L, N, and X frame revolvers In ascending order of size.
S&W never made what you describe.
No. J frames are revolvers.
The most common frame size for the .38 special in Smith and Wessons line up of revolvers were the J frame.Some were also made on the K frame,and the L frame.
In the context of revolvers, "K," "L," and "N" refer to different frame sizes and models produced by Smith & Wesson. The "K" frame is medium-sized, often used for .38 Special and .357 Magnum revolvers; the "L" frame is slightly larger and designed for heavier calibers; and the "N" frame is the largest, typically used for .44 Magnum and other powerful cartridges. These designations help users identify the size and intended use of the revolver.
The Smith and Wesson K frame revolvers were made from 1946-1983.
The small frame revolvers, Models 36, 37, 60, etc. were five shot and they were built upon the "J" frame. The medium caliber revolvers: Models 10, 19, 13, etc. mostly in .38 Special and .357 Magnum were built on the "K" frame. The larger guns like the Model 29, in calibers such as .44 Special, .44 Magnum, .45 Long Colt, and I believe perhaps .41 Magnum were built on the "L" frame. Hope this helps.Actually the large frame smith and Wesson revolvers are based on the N frame.this will include all model 20,21,22,23,24,25,26,27,28,29,57,and 58.This will include the pre war models of 1917,and 44 hand ejectors,and 455 hand ejectors.This will also include the new models 520,and 629.These are all N frame revolvers.
Not all revolvers HAVE a model number- and those that DO do not have it marked on all revolvers. For NEWER Smith & Wesson revolvers, open the cylinder, and look on the part of the frame that is covered by the crane (crane connects the cylinder to the frame) You might see something like 10-5, indicating a Model 10, 5th change. But not all S&Ws had a model number.