model 10-10 end shake/ejector thread rotation?

[stonebuster]

I was checking my recently purchased NY DOC trade in 10-10 yesterday and found the B-C gap to be .007 while pushed back and .002(maybe closer to .001) pushed forward. This would indicate an end shake of .005-.006 which is excessive. The B-C gap seems to be acceptable. I plan on buying some shims to correct this. I'm thinking a .004 shim will do it. I realize after shimming the B-C gap I should expect to be .007. If I'm not figuring this correctly please chime in. The gun is 1998-99. Does the hand ejector thread unscrew right handed or left?

 

[BlueHeelerFl]

Where did you find that model 10? I'm from NYC and would like something with that kind of history.

I'm dirt poor right now. But hopefully someday

 

[stonebuster]

Where did you find that model 10? I'm from NYC and would like something with that kind of history.

I'm dirt poor right now. But hopefully someday

My gun range in Ct. I bought another one there today it's a 10-14 38 special +P. The DOC marker fell off this one. I think these LE trade in guns are going to be hard to find at some point so I went for it.

 

[Waveski]

A LE trade-in of such recent vintage that it has the I.L. ? That comes as a surprise to me.

 

[stonebuster]

A LE trade-in of such recent vintage that it has the I.L. ? That comes as a surprise to me.

They had a few with the IL, all 10-14s. I guess they're going to semi autos and phasing out the revolvers. The round DC tag was missing from this one but the glue was still over the Smith logo which I removed with solvent. My range bought 10 of them from 10-6 to 10-14s from NY. The old "carried a lot , shot a little" didn't seem to fit most of what they had.

 

[Lyle Wyatt]

Some agencies don't have as many handguns as they do officers, since only a small percentage of people are carrying a side arm at any given time. That means one weapon gets used by several people when it's time for qualification. Sometimes a small number of these handguns are used exclusively as range guns, so they get shot a lot.

 

[Driftwood Johnson]

Howdy

S&W changed the extractor rod thread from right hand to left hand with the 10-2 in 1961 for the standard (tapered) barrel.

S&W changed the extractor rod thread from right hand to left hand with the 10-3 in 1961 for the heavy barrel.

This was done so the normal operation of the revolver would tend to tighten, rather than loosen the extractor rod.

I just grabbed a 38 Military and Police from 1945. The precursor to the Model 10. Too lazy to go digging for a Model 10. B/C gap with cylinder shoved forward is .003, with cylinder back it is .005. That is a barrel cylinder gap of .005 with .002 endshake.

found the B-C gap to be .007 while pushed back and .002(maybe closer to .001) pushed forward. This would indicate an end shake of .005-.006 which is excessive.

Kuhnhuasen says most Smiths leave the factory with a B/C gap of between .003 and .006. Generally a gap of .008 is considered maximum for good performance, .005 - .006 is considered ideal. Once the gap exceeds .009 -.010 it is time to consider setting the barrel back.

If it were mine, I would just shoot it as is. I have lots of K frame Smiths, have never put any shims in any of them.

 

[ThomasT]

Yep. Go shoot it and if the accuracy is acceptable just leave it alone. My bud bought a PD turn in from Buds gunshop that at one point had been rebarreled from a tapered to a heavy barrel. It looks a little strange right at the front of the frame because the frame is tapered to meet the skinny barrel and the new heavy barrel is a little bigger in diameter but the gun shoots great. He said if all he had was one SD pistol this would be his first choice.

 

[stonebuster]

I wasn't concerned with the B-C gap. It was the .005 end shake back and forward that I was worried would damage the gun. Both the 10-10 and the 10-14 shoot very accurately and I plan on shooting them often. I shoot them better than I do my two GP-100s for some reason.