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S&W N Frame M1917 Hammer interchange?

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krs

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I have a very nice Smith & Wesson model 1917 .45 acp, the version used by our services for a while before the full distribution of the 1911.

Someone owning it before me had apparently decided that it would be more useful to them as a double action only revolver, and I have to admit that it has a good double action trigger.

I'm inside the pistol now and there are clear indications that the single action notch has been filed on and the result is a rounded version that couldn't catch. It doesn't look like wear did it and I'm pretty sure from Kuhnhuasen that the hammer was thoroughly case hardened when new. So it's best to replace the hammer although I'm game to try to recreate the original surfaces, although they'd necessarily be slightly relocated downward, or rearward depending on the point of view.

That's all background.

The question is: Are all 'N' frame Smith & Wesson hammers created equal enough that one from a later version, a Model 25, will replace the original in the model 1917?

If not, is there a place where I can obtain a replacement without having to trust ahead of time that Numrich will get it right? They list them as in stock but that could mean only that something similar is in stock. I'd like to avoid the need for a roundtrip mailing wait if possible.

Is this too obscure? Too old a pistol? The action is familiar enough and does not use the hammer block.

for reference, it's one of these - actually THIS one of these: Smith1917.gif
 
The Smith & Wesson model 1917 had what is known as their "long action" because of the radius of the hammer's cocking stroke. After World War Two they replaced it with a so-called "short action," with a shorter cocking stroke. Short action hammers do not interchange with the earlier long action ones.

However pre-war N-frame hammers, including the .38/44 Heavy Duty, .44 Hand Ejectors, .455 Hand Ejectors and .357 Magnum will usually work in a 1917.
 
OK, good. Thanks a lot..........Fuff.

I'll go ahead and order the one listed as a 1917 hammer and hope that at the least it'll be any prewar N frame hammer. This widens the margin for error on their part and they're usually at least close.
 
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