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Rifles, Reloading, Optics, Equipment
Reloading
How do you eliminate runout
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<blockquote data-quote="25WSM" data-source="post: 1915001" data-attributes="member: 38048"><p>I only tested to how much difference it made and at what point it became unacceptable. Most dies have very little trouble giving . 0025 run-out consistently. And I have found that it's just not worth the effort to get it any better. I corrected ammo to less than . 0005 and saw no difference even in my 1000 yard ammo. Tony Boyer was asked to test a piece of equipment that straightened out ammo. Him and a friend tested straightened ammo vs their normal ammo and said basically the same thing. Why waste time fixing something that ain't broke. Now I'm not advocating to just screw your dies in and just load away. I do tighten the lock rings down on my die where they need to be and put them in my lathe and turn a smidge off the bottom of the locking ring. Then I reset my setback. I like the Hornady lock rings and have found some that needed about . 005 taken off the bottom to be straight with the die body. It's just something I do with all my dies even customers dies when they bring their press in for me to set up their dies. Most of my ammo when checked is around . 0015 to . 002 in run-out. This is measured by turning my rounds on the . 200 line and shoulder supported with the indicator put on the ogive/shank junction. That distance to the junction on most of my target ammo is from . 200 to . 350. I cut my Chambers to have enough freebore to seat bullets above the donut area. Can't always do this with hunting guns because of mag length limitations. My 300wdm and 6.5creed 1000 yard guns both have more than . 300 freebore. My 6slr and 6bra have much shorter freebore. My 243ai has alot of freebore because of the short neck. I am still up in the air a little on clocking my ammo. I just wonder if they all rotate the same when you close the bolt. But I will keep testing it to see if I see results over the season. Some have claimed it makes a difference. Anybody have their own thoughts on clocking? Maybe if you just can't achieve straight ammo it could help tighten up your groups if you feel the run-out is an issue.</p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 1915001, member: 38048"] I only tested to how much difference it made and at what point it became unacceptable. Most dies have very little trouble giving . 0025 run-out consistently. And I have found that it's just not worth the effort to get it any better. I corrected ammo to less than . 0005 and saw no difference even in my 1000 yard ammo. Tony Boyer was asked to test a piece of equipment that straightened out ammo. Him and a friend tested straightened ammo vs their normal ammo and said basically the same thing. Why waste time fixing something that ain't broke. Now I'm not advocating to just screw your dies in and just load away. I do tighten the lock rings down on my die where they need to be and put them in my lathe and turn a smidge off the bottom of the locking ring. Then I reset my setback. I like the Hornady lock rings and have found some that needed about . 005 taken off the bottom to be straight with the die body. It's just something I do with all my dies even customers dies when they bring their press in for me to set up their dies. Most of my ammo when checked is around . 0015 to . 002 in run-out. This is measured by turning my rounds on the . 200 line and shoulder supported with the indicator put on the ogive/shank junction. That distance to the junction on most of my target ammo is from . 200 to . 350. I cut my Chambers to have enough freebore to seat bullets above the donut area. Can't always do this with hunting guns because of mag length limitations. My 300wdm and 6.5creed 1000 yard guns both have more than . 300 freebore. My 6slr and 6bra have much shorter freebore. My 243ai has alot of freebore because of the short neck. I am still up in the air a little on clocking my ammo. I just wonder if they all rotate the same when you close the bolt. But I will keep testing it to see if I see results over the season. Some have claimed it makes a difference. Anybody have their own thoughts on clocking? Maybe if you just can't achieve straight ammo it could help tighten up your groups if you feel the run-out is an issue. Shep [/QUOTE]
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How do you eliminate runout
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