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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
looking to rebarrel a rifle, which one is the best?
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<blockquote data-quote="shortgrass" data-source="post: 1011977" data-attributes="member: 24284"><p>That LW barrel couldn't/shouldn't have been Nitide treated <em>before</em> chambering. If it was, the chamber would have had to been cut with a carbide reamer. Few 'smiths have carbide reamers. Even if it was Nitrided before chambering and chambered with a carbide reamer, the throat gets cut during the chambering process and the nitride layer would have been machined away, leaving the parent steel exposed. I've tried to cut Nitrided steel with HS tools,,,,, all they do is squeek and squeel and dull quickly without removing any metal. I've heard (LW is not telling) what the corresponding grade of steel is in terms recognizable to Americans, that would be 4150, which is harder to machine than 4140 (higher carbon content) (Europe uses a different jargon for steel identification than is used in the U.S.). In conclusion, any barrel from any American maker, that's been nitrided will stand up to high intensity cartridges. .22-243s that have been treated run 2000+ rounds as do 6.5/.284s. I have personal experience with both calibers and others being treated, too. In theory, the LW barrel that's not been treated should out last others, but that's slicing the bread pretty thin. Barrel making has to reach a "happy medium" with the steel the maker chooses, longevity & strength verses machinability. If the chosen material is too tough it won't make a 'good' barrel (because it'll wear out tools quickly and the "harder " the material is the' harder it is to lapp), if it's too easy to machine it won't have the characteristics to last.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1011977, member: 24284"] That LW barrel couldn't/shouldn't have been Nitide treated [I]before[/I] chambering. If it was, the chamber would have had to been cut with a carbide reamer. Few 'smiths have carbide reamers. Even if it was Nitrided before chambering and chambered with a carbide reamer, the throat gets cut during the chambering process and the nitride layer would have been machined away, leaving the parent steel exposed. I've tried to cut Nitrided steel with HS tools,,,,, all they do is squeek and squeel and dull quickly without removing any metal. I've heard (LW is not telling) what the corresponding grade of steel is in terms recognizable to Americans, that would be 4150, which is harder to machine than 4140 (higher carbon content) (Europe uses a different jargon for steel identification than is used in the U.S.). In conclusion, any barrel from any American maker, that's been nitrided will stand up to high intensity cartridges. .22-243s that have been treated run 2000+ rounds as do 6.5/.284s. I have personal experience with both calibers and others being treated, too. In theory, the LW barrel that's not been treated should out last others, but that's slicing the bread pretty thin. Barrel making has to reach a "happy medium" with the steel the maker chooses, longevity & strength verses machinability. If the chosen material is too tough it won't make a 'good' barrel (because it'll wear out tools quickly and the "harder " the material is the' harder it is to lapp), if it's too easy to machine it won't have the characteristics to last. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
looking to rebarrel a rifle, which one is the best?
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