Interesting "Extra Hole"

axehandle

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New 4 inch (3.8xx) 610 in the shop. Looking it over I see an extra hole in the crane. Nothing I see on the S&W web site that explains it. Nothing in the box either. A new 6 inch 610 in the case beside without the hole. Anyone know?
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That's what I saw at first, except with the cylinder closed the extractor rod in the model 610 should be enclosed in the underlug. Definitely odd appearing.
 
That's what I saw at first, except with the cylinder closed the extractor rod in the model 610 should be enclosed in the underlug. Definitely odd appearing.

Definitely a screw up.......Hole too low for ball detent.......Run Forest Run

Show a pic of the front of the cyl/yoke in the open position.......If its screwed up outside. It maybe screwed up inside.
 
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The link posted a couple posts up shows what it is supposed to be. The detent ball and spring are not there. This gun is NIB. Barrel shroud looks cut for the detent ball. May need to go home to S&W for the extra parts....
 
Since the model 610 uses the conventional front and back cylinder lockup, I think the yoke on this one is from an N frame model with the ball detent system. Mystery solved?
 
I was going to say "S&W version of the LeMat for 22 bird shot. Picture is a bit hard to get perspective from but the ball detent explanation makes sense as the ejector shroud has the "v" cut.
 
The link posted a couple posts up shows what it is supposed to be.
The detent ball and spring are not there.
This gun is NIB.
Barrel shroud looks cut for the detent ball.
May need to go home to S&W for the extra parts....

That's all mess up.

Wrong yoke for a 610.

610 haven't had ball detents.

And it wouldn't have both an ejector rod latch & a ball detent lock too.

The picture in that link appears to be a 4" M69 L-frame. That model had that style ball detent lock. The 2-3/4" bbl models got the newer style ball detents.

N-frame M610's have had neither.

Is that even the right barrel?

.
 
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An N frame yoke that got in tthe wrong pile and machined for a yoke detent. An L frame yoke has less room from pivot shaft to cylinder tube than a N frame yoke. If it was an L frame yoke it would not fit the cutout for it and the cylinder would be to low and strike the frame instead of closing.

It is amazing that ever left the assembly line. Scary
 

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