No, no podria decirte cual es la diferencia exacta entre esos frames, como habiamos visto hace tiempo Colt se complico la vida en la designacion de los frames y cualquier diferencia en los mecanismos internos del revolver hacia que cambiaran la designacion del frame.
Del tamaño intermedio tambien lo habiamos visto, los E, I, J, v y AA todos son frames medianos correspondientes al tamaño de frame .41.
Aqui reprodusco lo que nos contestaron en el foro de Colt aquella vez:
“Up until the post World War Two years, Colt identified their frames with names like the "41 Frame" to ID the mid-frame guns like the Official Police, and the "Police Positive Special frame" to ID guns like the Detective Special.
After the war, Colt assigned letter identifications to all frame sizes.
Here are the Colt double action frame sizes from smallest to largest, and examples of the guns using that frame:
The "D" frame--The Detective Special, and Diamondback.
The "SF" frame--Late 1990's guns like the DS-II and the Magnum Carry.
The "E&I" frame--Slightly different versions for the medium frame used in the post war guns--The Official Police, old Model Trooper, the Python.
The "J" frame--The Trooper Mark III, the Lawman.
The "V" frame--The Trooper Mark V, and the Peacekeeper.
The "AA" Frame--The King Cobra.
The "VV" frame--The Anaconda.
Dfarishwheel.”
"Sorry, I just forgot the New Service, since I'm mostly "into" postwar guns.
The New Service was Colt's pre-war large frame revolver.
It was known only as the "New Service" frame.
It was discontinued in 1944, and Colt never made another large frame revolver until the Anaconda "VV" frame.
Since the New Service was a pre-war gun, it never had a letter ID attached to it like all post-war guns and was simply known as the "New Service" frame.
The "E" "I" "J" "V" and "AA" guns are all medium sized frames, but different designs.
The "E&I" sized guns were the old model Colt revolvers as made from the early 1900's up until 1969.
Again, these were once known as the "41" frame because the ancestor of this frame was first chambered in a 41 caliber.
After the war, Colt assigned Letters to each frame size, and the "41" became the "E" frame, and then after a slight change it became the "I" frame.
In 1969, Colt discontinued all of the old mid-frame guns EXCEPT the Python.
The replacement was the "J" medium frame revolver using an entirely new action and frame design.
Although a medium frame, it was totally different from the old "41-E-I" guns.
The "V" and "AA" guns were just slightly modified versions of the "J" frame.
The "VV" Anaconda is a giant-sized version of the "J" through "AA" medium framed guns.
The small framed "SF" guns were built with a smaller sized version of the "J" through "AA" guns.
So, the old model Colt medium framed revolvers were the "41-E-I" frames. These were all more or less the same design.
The post-1969 guns "J-V-AA" are a totally different design from the old models, but are very similar to each other.
The "VV" and "SF" guns are larger and smaller versions of the "J-V-AA" guns.
Hope this isn't confusing.
Dfarishwheel.”
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