DA pull on a DA/SA vs. DAO pull?


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marklbucla
October 10, 2005, 07:17 PM
Is it true in general that a DA pull on a DA/SA will be much heavier than a pull on a DAO?

I don't have much experience with revolvers, but the DA pull on the DA/SA revolvers I've tried has been at best unpleasant to nearly impossible at worst.

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Old Fuff
October 10, 2005, 08:12 PM
If we limit the discussion to revolvers there shouldn't be any difference between the double action on a conventional SA/DA revolver and a DAO revolver of the same kind made by the same maker.

However small revolvers with coil-spring mainsprings won't feel the same as a larger revolver with a leaf or "V" mainspring, if all other things are equal.

When using the trigger (in double action) to rotate the hammer, the further the pivot points are between the trigger and hammer, the more leverage you will get - and that makes the pull feel lighter.

Also a S&W revolver in theory (but not always in practice) has a lighter feeling D.A. trigger pull then other makes (Colt Ruger, Taurus, etc.) because of the way its lockwork is designed to increase the leverage toward the end of the stroke. Now won't that start a flame-war ... :evil:

Last but not least, current revolvers don't have the kind of fitting and internal polishing that was done years ago, but with some dry firing they tend to get better.

I suspect you have been looking at small, 5-shot Smith & Wesson or Taurus snubbies. See if you can find an older Smith & Wesson 1905 M&P (aka model 10) and try the double action on it. :D

timothy75
October 10, 2005, 08:16 PM
No not at all they're the same. Double action shooting is a completly different trigger pull though and requires serious practice to master. But when you do its alot of fun and adds a physical joy to shooting.

scotty
October 10, 2005, 11:14 PM
As Old Fuff said, there should be no difference between DAO and DA/SA revolvers of the same make and model.

Trigger feel will improve with use. Something to consider is that DAO revolvers are of necessity always fired double action. DA/SA revolvers are probably more often than not fired single action so the DA mechanism gets much less use.

If you compare well used revolvers, this may account for the difference in DA trigger feel.

Moonclip
October 11, 2005, 01:06 AM
On British Enfield revolvers of the 1930's/WW2 era, those that were converted or made as DAO's I think were given a lighter mainspring. SO in theory those that are still found as DA/SA will have a heavier pull in DA.

Old Fuff
October 11, 2005, 08:08 AM
Only sort of ... :D

Suposedly the mainspring was slightly lightened, but thereafter it was used in all Enfield revolvers ragardless of the hammer style. The bobbed hammer version was intended for tankers, who complained that the regular hammer would get snagged in a tight hatch.

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