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Rifles, Reloading, Optics, Equipment
Gunsmithing
Is it possible to damage or affect the accuracy of a barrel by black nitriding it?
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<blockquote data-quote="bamban" data-source="post: 1795365" data-attributes="member: 17722"><p>The one with 10741 rounds is just one data point, I do not know if that would be the norm or the aberration. We have not pulled any of the other treated ones. There is more coming up about to be pulled at close 6K rounds that I also mentioned. </p><p></p><p>We have barrels out there right now that have as much as 6k rounds through them that are still very competitive at 600 yards. </p><p></p><p>One of mine with over 2K rounds still hammers 600 yards. Here is a screen shot of the last targets shot at 600. The eTarget was a Shotmarker. I did not shoot this, I loaned my rifle and load to a friend to shoot in the match. This is from a 20 inch service rifle with a 4.5X March scope. My buddy out X'ed the 6mm any rifle any sight winner in the agg, 63 vs 59.</p><p></p><p>Another data point worth mentioning, one of our top shooters who won the Presidents Hundred a couple of years had one of his barrels nitrided. This one he established the precision and velocity before the treatment. Post treatment, the velocity from the same load went up almost 80 FPS. He had to back down the powder charge to get it back to the node. How did the treatment affect precision? Hard to tell, he just set a range record at the Talladega 600 match last month with the barrel. The match was held at the CMP range in Alabama.</p><p></p><p>My take right now, the longevity appears to be better, how much more? The sample is still too small to have high enough confidence level to make a statement. In a couple more years we will have over 50K rounds shot through all the treated barrels.</p><p></p><p>[ATTACH=full]166337[/ATTACH]</p></blockquote><p></p>
[QUOTE="bamban, post: 1795365, member: 17722"] The one with 10741 rounds is just one data point, I do not know if that would be the norm or the aberration. We have not pulled any of the other treated ones. There is more coming up about to be pulled at close 6K rounds that I also mentioned. We have barrels out there right now that have as much as 6k rounds through them that are still very competitive at 600 yards. One of mine with over 2K rounds still hammers 600 yards. Here is a screen shot of the last targets shot at 600. The eTarget was a Shotmarker. I did not shoot this, I loaned my rifle and load to a friend to shoot in the match. This is from a 20 inch service rifle with a 4.5X March scope. My buddy out X'ed the 6mm any rifle any sight winner in the agg, 63 vs 59. Another data point worth mentioning, one of our top shooters who won the Presidents Hundred a couple of years had one of his barrels nitrided. This one he established the precision and velocity before the treatment. Post treatment, the velocity from the same load went up almost 80 FPS. He had to back down the powder charge to get it back to the node. How did the treatment affect precision? Hard to tell, he just set a range record at the Talladega 600 match last month with the barrel. The match was held at the CMP range in Alabama. My take right now, the longevity appears to be better, how much more? The sample is still too small to have high enough confidence level to make a statement. In a couple more years we will have over 50K rounds shot through all the treated barrels. [ATTACH=full]166337[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Is it possible to damage or affect the accuracy of a barrel by black nitriding it?
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