S&W 638 a Single Action?
So my two good friends have a SW Model 638 and a Ruger LCR. Both are super awesome, super light CC tyranny fighters...
SW 638
Finish is not so good (it is like painted???)
Double action pull hammer-less trigger makes it a single action
Ruger LCR
Sweet finish
DAO
I like the Ruger...and I do prefer the DAO triggers...especially when the revolver could be up front under my pants close to my manliness...don't need no accidents down there if ya know what I mean!
NO:no: 'and'
fftopic:
The Smith & Wesson 638 IS NOT a Single Action Revolver!
A SA (Single Action) is one that must be manually cocked by pulling the hammer back and then firing it with a squeeze on the trigger, such as the Colt SAA (Single Action Army) or the Ruger Blackhawk.
The naming of the action is not based on the process of pulling the trigger, it is descriptive of HOW the firearm is 'cocked and fired'.
A single-action firing system is where the trigger has one job (action) to do, that is to release the hammer to strike the firing pin or to strike the primer.
A double-action firing system is where the trigger has two jobs (actions) to do, that is to (1) cock the hammer; (2) release the hammer to strike the primer (direct or indirect primer striking).
A hammer-less revolver, or one that has the spur on the hammer 'bobbed' so you cannot cock it manually, is known as a Double Action Only (DAO) revolver.
So, the naming of an action depends on what the trigger must do,
SA - Release the hammer/sear to fire the cartridge;
DA - Cock & Release the hammer/sear to fire the cartridge, but can also be fired in a Single Action manner too;
DAO - Cock & Release the hammer/sear to fire the cartridge because the hammer has been modified by bobbing or enclosed by the frame.
Hope that clears up the subject...