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Posted: 11/10/2011 4:05:36 PM EDT
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Im thinking about grabing one of the S&W "sporter" rifles as an extra and they have a 1/8 twist non-chrome lined barrel.
Real application differences? I know the 1/8 twist is a good "all around" twist rate. Pro's & Con's? |
| I only have chrome lined barrels , but my suspicion is that for most of us it doesn't matter. Chrome lined barrels last longer but I bet it'd be something like 10,000+ to burn out even a non chrome lined barrel. Unless you get in some weird fantasy shtf scenario where you're outside for days or probably weeks in some kind of swamp or in constant snow and rain I don't think the corrosion resistance matters these days. |
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I only have chrome lined barrels , but my suspicion is that for most of us it doesn't matter. Chrome lined barrels last longer but I bet it'd be something like 10,000+ to burn out even a non chrome lined barrel. Unless you get in some weird fantasy shtf scenario where you're outside for days or probably weeks in some kind of swamp or in constant snow and rain I don't think the corrosion resistance matters these days. This. And, there's no corrosive 5.56/.223 ammo I no of so no problem. It will probably take me a lot of time to even wear out a CL barrel let alone a Non-CL. |
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The S&W sport isn't exactly just "not chrome lined"... it is nitrided/melonited, as an alternative to chrome.
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I only have chrome lined barrels , but my suspicion is that for most of us it doesn't matter. Chrome lined barrels last longer but I bet it'd be something like 10,000+ to burn out even a non chrome lined barrel. Unless you get in some weird fantasy shtf scenario where you're outside for days or probably weeks in some kind of swamp or in constant snow and rain I don't think the corrosion resistance matters these days. This. And, there's no corrosive 5.56/.223 ammo I no of so no problem. It will probably take me a lot of time to even wear out a CL barrel let alone a Non-CL. Nitride according to some test results I have seen is more corrosion resistant that chrome lining. And nearly as good, if not superior in some instances, on barrel life as well. Main thing on barrel wear is to have good heat/erosion resistant steel. |
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Quoted:
The S&W sport isn't exactly just "not chrome lined"... it is nitrided/melonited, as an alternative to chrome. Quoted:
Quoted:
I only have chrome lined barrels , but my suspicion is that for most of us it doesn't matter. Chrome lined barrels last longer but I bet it'd be something like 10,000+ to burn out even a non chrome lined barrel. Unless you get in some weird fantasy shtf scenario where you're outside for days or probably weeks in some kind of swamp or in constant snow and rain I don't think the corrosion resistance matters these days. This. And, there's no corrosive 5.56/.223 ammo I no of so no problem. It will probably take me a lot of time to even wear out a CL barrel let alone a Non-CL. Nitride according to some test results I have seen is more corrosion resistant that chrome lining. And nearly as good, if not superior in some instances, on barrel life as well. Main thing on barrel wear is to have good heat/erosion resistant steel. Nitriding and Melonite are two different treatments, although salt bath nitriding is a type of Melonite treating. DSA does a Nitride barrel, but it is very different from an ARP Melonite Barrel. Similar, but not the same. Melonite is superior for corrosion resistance and typically increases velocity from a same length chrome lined barrel. The S&W Sport has a Melonite barrel. Very nice rifle for the money. Superior to chrome lined IMO |
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Nitriding and Melonite are two different treatments. "Nitride" is a colloquial term for nitrocarburizing, of which "melonite" is a particular branded variation of. It's like saying "tissue" and "kleenex" are different. salt bath nitriding is a type of Melonite treating.
You have that backwards. Melonite is a specific type of nitride. Wikipedia has a reasonably simple explanation of nitriding processes: http://en.wikipedia.org/wiki/Ferritic_nitrocarburizing |
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Nitriding and Melonite are two different treatments. "Nitride" is a colloquial term for nitrocarburizing, of which "melonite" is a particular branded variation of. It's like saying "tissue" and "kleenex" are different. salt bath nitriding is a type of Melonite treating.
You have that backwards. Melonite is a specific type of nitride. Wikipedia has a reasonably simple explanation of nitriding processes: http://en.wikipedia.org/wiki/Ferritic_nitrocarburizing I will admit I am not that educated on the subject, but I have both barrels. One from ARP and one from DSA. The ARP barrel is basically scratch proof on the outside (same as inside I guess). The DSA feels similar to a standard .mil barrel on the outside as far as the coating. It would scratch easy. Maybe they coat the outside. |
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