Sig P220 in 45

[Ranald]

What is the action on a P220?  TDA, Single, DAO?

I know it's a dumb question, but Sig's website skips this in the specs, as if it were inconsequential.

Thanks -

Ran

[Ranald]

http://www.lisc.net/p540.htm

LISC list it as Single/Double, so I'm guessing it's TDA in the tradition of the 1911.  Thanks -

Ran

[new wildcatter]

I have a P220 in 45, and a P226 in 9mm, and both of them are double action. they can be fired by pulling the trigger with the hammer down. the trigger does double the work, cocking then releasing the hammer thus firing the gun. single action involves you manually cocking the hammer. Then pulling the trigger does a single action and releases the hammer.
 DAO means the gun can ONLY be fired by trigger cocking, like a hammerless revlover.
 SA means 1st manually cocking the gun then pulling the trigger to fire the gun like the 1911, or colt peacemaker.
 DA means you have the option to triggercock, or manual cock.
 Hope this makes it clear as mud.

[Ranald]

Thanks Wildcatter.  Yours is the first accurate summary of action types I've read.

TDA means the first shot is either DA or the hammer is cocked to fire, followed by SA self-cocking.  1911, some Rugers operate in this mode.

Does the P220 revert to SA (self-cocking) after the first shot?  It sounds like DA with option to SA for each shot.

Also, can it be carried Condition One like the 1911?

Thanks -

Ran

[RemingtonDave]

The traditional P220 has a decocking lever for the safety. There is no thumb safety as on a 1911, so no cocked and locked.
The slide cocks the hammer on recoil, so only the first round is DA.
Having said that,....aren't some SIGs available as DAO?



RDave

[Ranald]

Thanks RDave,

It's a TDA with decock as you say.

BTW, I've just found Gun-Tests' link to their Volume 13, Number 5, May 2001 edition with an article called "Full-Size Double Action .45 ACPs: We Like SIG’s TDA P220 Best".  (When Gun-Tests gives a 'thumbs up', it's earned the hard way.)  I should have checked there first.

As to DAO units, I'm not the right guy to ask.  I wish SIG and other mfrs would simply list this stuff in their specs.  It's rather like examining a car without any idea as to whether the thing is an automatic or manual shift.

Cheers,

Ran

[new wildcatter]

the mod # tells what it is/has, kind of. P220 means full size single stack mag, DA in 45, 38 super, ?. P226 mean full size double stack mag DA in 9mm, and ?.  There are infinite sight, grip,finish, etc, combos on each mod. Mine are fixed, hogue,blued, in that order.  These # i know because i have them.  The  other #'s  are a mystery to me. the P239, not sure of #, might be DAO.
 What does TDA stand for?

[Wijbrandus]

What does TDA stand for?

Traditional Double Action?

[Ranald]

Yes, thanks.  TDA = Traditional Double Action (same as manual safety DA).

Check this, just found it via Google:
http://web4.integraonline.com/~bbroadside/Handgun_Actions.html

TDA is employed on the Ruger P90, Sig P220...  First pull is DA, subsequent pulls are auto-cocked SA.  One can thumb-cock the first shot for SA.

Yesterday I was confused.  With all this data poring in, I've got to keep my sense of humor.

Cheers,

Ran