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04-11-2019, 08:24 AM
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Join Date: Oct 2013
Location: Central Montana
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I do not know about the exact steel alloy. It is very likely in the range of 4140. 4140 can vary some as to chrome, carbon, moly and manganese. I do know that if you take 4140, forge, NORMALIZE, harden and temper it you get a small increase in yield strength over 4140 that skips the normalization cycle
I don't think nickle would do much for additional tensile or yield strength.
If you had access to a PMI gun you could have a cylinder shot with one and it would tell you the metal composition, minus the carbon as it only detects the metals. I am around them when I work in refineries, but getting caught with gun parts in a refinery now days would get you fired.
I do have a model 10-2 that I made into a 357 by fitting a model 19-3 cylinder to it. The frame have been my experiment frame for years, has adjustable sights a 2 1/2" 357 barrel, round butted. It have several hundred 357 round through it with no ill effects.
Last edited by steelslaver; 04-11-2019 at 08:32 AM.
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04-11-2019, 10:23 AM
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Join Date: Jan 2007
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Nice find. Regarding conversions there have been companies successfully converting K frame cylinders to 9mm with moon clips for years. I don't see much practical pressure difference between 9x19 and 357. Although If I wanted to convert my 10-6 I could probably find and fit a 357 cylinder for less money that re-cambering.
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04-11-2019, 10:27 AM
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Could you imagine if some 357 magnum guns were accidentally made on 38 special frames? With as many model number stamping mixups over the years you would think it would have happened already. They surely would have recalled those guns and to my knowledge that has never happened. I cannot imagine the factory taking that risk of a frame mixup by making some guns weaker than others. I’m talking about the 10 and 13 here.
Now 38 special cylinders are a different length than 357 ones so the chance for a mixup is nearly impossible. I can see them having different cylinder composition
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04-19-2019, 08:16 PM
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I don't know if there is a difference between the cylinder materials of the S&W models 10 and 13. Kind of doubt it, simply based on the economics of using different metals for virtually identical parts.
But, as previously stated, that is just a guess on my part.
Rich
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04-27-2019, 10:45 PM
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Saw one of these at the gun show today...thinking about going back and getting it. I'm sure it's one of the NYSP guns, 10-6, D serial with the 4" .357 Magnum HB and .400 smooth combat trigger. Only reason I didn't get it is it has a lot of wear. Worn down to a patina on the barrel and part of the frame. It's seen some significant use - but I do like LEO guns. It's still wearing pachmayrs too.
Earl
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Earl Battey
Last edited by EarlB; 04-27-2019 at 11:02 PM.
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Tags
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357 magnum, 44 magnum, 581, 681, combat masterpiece, jinks, k-frame, m13, masterpiece, model 10, model 19, model 21, n-frame, scsw, victory |
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