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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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<blockquote data-quote="Lefty7mmstw" data-source="post: 747005" data-attributes="member: 48043"><p>When you are seating a longer pill I make sure it is about square to start with, start it a bit, then rotate the round and finish the seat; don't ram it home like you are trying to beat it up. Take a bit of time and let it center itself. </p><p> </p><p>As to the die and no expander ball; you'll have to inside mike a brass after trying it. Usually it's no unless you have collet dies as you'll end up more than the .002" under diameter that is about correct for neck tension; much more than that and you'll get runout during seating as the brass will stretch off center.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 747005, member: 48043"] When you are seating a longer pill I make sure it is about square to start with, start it a bit, then rotate the round and finish the seat; don't ram it home like you are trying to beat it up. Take a bit of time and let it center itself. As to the die and no expander ball; you'll have to inside mike a brass after trying it. Usually it's no unless you have collet dies as you'll end up more than the .002" under diameter that is about correct for neck tension; much more than that and you'll get runout during seating as the brass will stretch off center. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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