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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm BR build
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<blockquote data-quote="MontanaRifleman" data-source="post: 854792" data-attributes="member: 11717"><p>Develop hand loading techniques and use equipment to consistently produce concentric rounds. I find that FL dies produce the most concentric necks. If sized down much smaller than the expander, the expander might induce some runout. Lubing the inside of your necks will reduce or eliminate that. The best thing to do IMO is to have a custom die made to your chambers specs and have the neck portion made so it only reduces the ID to 1 or 2 thou less than the expander. Some use FL dies without ex panders, but I think ex panders eliminate any irregularities inside the neck.</p><p></p><p>Use a seating plug that best matches your bullets ogive and learn how to seat producing the best results. Using a concentricity gauge during the sizing and seating process will show you what is not working and what works best. I find that starting the bullet into the neck then backing off and turning the bullet about 180* helps get better results. Also, I work the sizing and seating strokes slowly.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 854792, member: 11717"] Develop hand loading techniques and use equipment to consistently produce concentric rounds. I find that FL dies produce the most concentric necks. If sized down much smaller than the expander, the expander might induce some runout. Lubing the inside of your necks will reduce or eliminate that. The best thing to do IMO is to have a custom die made to your chambers specs and have the neck portion made so it only reduces the ID to 1 or 2 thou less than the expander. Some use FL dies without ex panders, but I think ex panders eliminate any irregularities inside the neck. Use a seating plug that best matches your bullets ogive and learn how to seat producing the best results. Using a concentricity gauge during the sizing and seating process will show you what is not working and what works best. I find that starting the bullet into the neck then backing off and turning the bullet about 180* helps get better results. Also, I work the sizing and seating strokes slowly. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm BR build
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