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Concentricity Question
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<blockquote data-quote="MagnumManiac" data-source="post: 1402424" data-attributes="member: 10755"><p>Yes, that is the type of node I look for, but only if it groups without any vertical.</p><p>I used to play with QL, it has a feature known as Optimum Barrel Time. This is helpful SOMETIMES in getting close to a node without using lots of components as once you get that velocity you just do a few groups above/below in .3gr increments and fine tune.</p><p>OCW is very similar to ladder testing in a sense, I trust my ladder test results, they tell me a lot about the powder. I also use a Pressure Trace II, I no longer bother with QL.</p><p>I also run neck tension with lubed necks. This has given me single digit SD numbers and improved my scores more than any other thing I do. I have tried everything by elimination, this has been the ONLY thing that I could see make an impact at 1000mtr, MoA was terrible with unlubed necks and many fliers. Even NOT turning my necks didn't cause fliers, it did open MoA slightly, but not a deal breaker.</p><p>I still skim turn my necks, not for clearance, I have moved away from tight neck clearances, just so that they are uniform. I also use Forster FL Dies, somenhave bushings but I still use an expander that is .0005" larger than the bushing lubed with graphite.</p><p>As I said earlier, a loose, but not overly, case self aligns if you have the bullet just kissing the rifling. Although not all of my barrels like this and yet they still shoot around 3/8MoA which is about all I can get at 1000mtrs, no matter what I do.</p><p>Bullet jump is a not a dealer breaker either.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1402424, member: 10755"] Yes, that is the type of node I look for, but only if it groups without any vertical. I used to play with QL, it has a feature known as Optimum Barrel Time. This is helpful SOMETIMES in getting close to a node without using lots of components as once you get that velocity you just do a few groups above/below in .3gr increments and fine tune. OCW is very similar to ladder testing in a sense, I trust my ladder test results, they tell me a lot about the powder. I also use a Pressure Trace II, I no longer bother with QL. I also run neck tension with lubed necks. This has given me single digit SD numbers and improved my scores more than any other thing I do. I have tried everything by elimination, this has been the ONLY thing that I could see make an impact at 1000mtr, MoA was terrible with unlubed necks and many fliers. Even NOT turning my necks didn’t cause fliers, it did open MoA slightly, but not a deal breaker. I still skim turn my necks, not for clearance, I have moved away from tight neck clearances, just so that they are uniform. I also use Forster FL Dies, somenhave bushings but I still use an expander that is .0005” larger than the bushing lubed with graphite. As I said earlier, a loose, but not overly, case self aligns if you have the bullet just kissing the rifling. Although not all of my barrels like this and yet they still shoot around 3/8MoA which is about all I can get at 1000mtrs, no matter what I do. Bullet jump is a not a dealer breaker either. Cheers. [/QUOTE]
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