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Rifles, Reloading, Optics, Equipment
Reloading
Mandrel as last step?
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<blockquote data-quote="Alex Wheeler" data-source="post: 2082928" data-attributes="member: 101859"><p>Groups and cold bore accuracy should be the same thing. Smaller groups, closer to center cold bore shots. If a barrel does not put the cold bore shot in the group its scrap. </p><p></p><p>Neck tension can be set with bushings or mandrels, winning BR shooters use both methods. Experimenting is what will lead to your success. If you dont try something you wont know. I have rifles that are tuned from .0005" neck tension to .005" neck tension. All verified through testing at 1k for group size and consistency. .001" in neck tension (interference fit) often makes a huge difference in groups size even if its past the yield point of the brass. One thing I do see on a regular basis though is that light NT and heavy NT seem to work, while mid range never seems to end up being the best. Usually I will end up .002" or less or around .005". Rarely does .003-.004" win out. Just an observation, not a rule.</p><p></p><p>Don't take anyone'e advice as fact, often times a new shooter will stumble on to something great that catches on because us "experienced" shooters wont even try it because we "know" it wont work <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Its happened with me and some of my new shooters over the last few years and they have pushed the accuracy envelope just by trying something totally different.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 2082928, member: 101859"] Groups and cold bore accuracy should be the same thing. Smaller groups, closer to center cold bore shots. If a barrel does not put the cold bore shot in the group its scrap. Neck tension can be set with bushings or mandrels, winning BR shooters use both methods. Experimenting is what will lead to your success. If you dont try something you wont know. I have rifles that are tuned from .0005" neck tension to .005" neck tension. All verified through testing at 1k for group size and consistency. .001" in neck tension (interference fit) often makes a huge difference in groups size even if its past the yield point of the brass. One thing I do see on a regular basis though is that light NT and heavy NT seem to work, while mid range never seems to end up being the best. Usually I will end up .002" or less or around .005". Rarely does .003-.004" win out. Just an observation, not a rule. Don't take anyone'e advice as fact, often times a new shooter will stumble on to something great that catches on because us "experienced" shooters wont even try it because we "know" it wont work :) Its happened with me and some of my new shooters over the last few years and they have pushed the accuracy envelope just by trying something totally different. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Mandrel as last step?
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