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S&W Revolvers: 1961 to 1980 3-Screw PINNED Barrel SWING-OUT Cylinder Hand Ejectors WITH Model Numbers


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Old 02-07-2010, 12:38 AM
Thunderball Thunderball is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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Question Model 66-1 Year of Manuf?

Can you tell me when 27K10XX was made?
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Old 02-07-2010, 12:43 AM
P&R Fan P&R Fan is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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The catalog says 1978.
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Old 02-07-2010, 01:38 AM
Thunderball Thunderball is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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THANKS!

I was told the sn over the phone. I will get a good look at it Monday.
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Old 02-08-2010, 10:24 PM
Thunderball Thunderball is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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Default SN is different than what I thought

Now that I have the gun in hand, the SN is not what I was told. The SN is 37K01XX. Cna you date this for me?

I will post some pictures later.
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Old 02-08-2010, 10:43 PM
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HAWKEYE10 HAWKEYE10 is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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Date of manufacture still about the same. 1978 to 1979
Don
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Old 02-09-2010, 01:59 AM
Thunderball Thunderball is offline
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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As promised; Pictures:




What does the "V" stamped on the rear of the cylinder indicate?




Is this what folks call a "flame cut"?
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Old 02-09-2010, 02:11 AM
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Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf? Model 66-1 Year of Manuf?  
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Default Sweet looking 66!

That looks like a very nice 66!! I got to get one as a friend to my M-65!!
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Old 02-09-2010, 02:53 AM
tomhenry tomhenry is offline
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Quote:
Is this what folks call a "flame cut"?
Yes. It cuts and then the heat typically hardens it so that it cuts to a certain depth and then no more. So they say.

This might be of interest to you re your K frame magnum. It has to do w/forcing cone damage.

Quote:
The 125 grain bullets driven to maximum velocities used large charges of relatively slow-burning powders. Handloaders know the powder types as WW296 and H-110, among others. The combination of slow ball-type powders and the short bearing surface of the 125 bullets allows prolonged gas cutting of the forcing cone and top strap area, accelerating erosion and wear.

Borescope studies of rifle, machine gun, and auto cannon chamber throats shows a lizzard-skin-like texture due to this gas cutting damage, called "brinelling". The results of brinelling are fine microcracks that weaken the surface of the steel, and further promote erosion. In machine guns and auto cannons, barrel life is measured in terms of "useable accuracy", and round counts that determine this are based on group sizes at engagement ranges.

In the K-frame magnums, the forcing cone dimensions combined with the barrel shank dimensions results in a relatively thin shank at the 6 o'clock position, where a machine cut is made to clear the crane. This is usually where the forcing cone cracks. The L and N frames use much beefier barrel shanks and do not have this cut. S&W intended the K frame magnums to be "carried much and fired seldom" service arms, designed to fire .38 Specials indefinitely, with light to moderate use of .357 Magnums. You notice that S&W has discontinued production of K frame .357 magnums, no doubt due to product liability issues and a couple generations of K frame magnum experience.
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