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Rifles, Reloading, Optics, Equipment
Reloading
Expander Mandrel's
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<blockquote data-quote="sedancowboy" data-source="post: 2081839" data-attributes="member: 85874"><p>Low numbers are a process (low ES, SD and Group Size). It starts with good Brass, good prep, good components and good loading technique. To benefit from using mandrels to set neck tension and lower run out you will need to neck turn your brass (once when new) and anneal (after every firing). Annealing is just as important as using a mandrel to getting good numbers. I personally use both .001 and .002 less bullet dia. based on my testing, you do have some spring back. This is where annealing is important because your spring back will be consistent. For a hunting rifle I would start with a .262 mandrel assuming a .264 bullet dia. </p><p>Henry</p></blockquote><p></p>
[QUOTE="sedancowboy, post: 2081839, member: 85874"] Low numbers are a process (low ES, SD and Group Size). It starts with good Brass, good prep, good components and good loading technique. To benefit from using mandrels to set neck tension and lower run out you will need to neck turn your brass (once when new) and anneal (after every firing). Annealing is just as important as using a mandrel to getting good numbers. I personally use both .001 and .002 less bullet dia. based on my testing, you do have some spring back. This is where annealing is important because your spring back will be consistent. For a hunting rifle I would start with a .262 mandrel assuming a .264 bullet dia. Henry [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Expander Mandrel's
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