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Rifles, Reloading, Optics, Equipment
Reloading
280AI Redding Elite Bushing Die Set
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<blockquote data-quote="cdherman" data-source="post: 2478555" data-attributes="member: 12282"><p>I have your dies and a 280 AI too. Load for a 7 RM too. I have a lot of nitrided bushings, cause I didn't know what I was doing initially!</p><p></p><p>I would consider getting a mandrel in .284 (for loading typically .283) You have two guns in that caliber already. </p><p></p><p>Why mandrel (and not neck sizing)? Well, variation in neck thickness will result in variation in internal neck diameter when bushing sizing. The guys that turn the necks get rid of all that variation. But its work work work. Good brass makes this less of a problem, but even minor variation will result in slight different amounts of seating force (and pressure needed to expel the bullet upon firing). Variation is the enemy.</p><p></p><p>bushing sizing and then a final run with a mandrel cleans up that variation. And using a mandrel is super quick and easy. I use graphite lube and then I am ready to load. Bullets tend to all seat with same force.</p><p></p><p>All the other advice up there makes sense too, BTW.</p></blockquote><p></p>
[QUOTE="cdherman, post: 2478555, member: 12282"] I have your dies and a 280 AI too. Load for a 7 RM too. I have a lot of nitrided bushings, cause I didn't know what I was doing initially! I would consider getting a mandrel in .284 (for loading typically .283) You have two guns in that caliber already. Why mandrel (and not neck sizing)? Well, variation in neck thickness will result in variation in internal neck diameter when bushing sizing. The guys that turn the necks get rid of all that variation. But its work work work. Good brass makes this less of a problem, but even minor variation will result in slight different amounts of seating force (and pressure needed to expel the bullet upon firing). Variation is the enemy. bushing sizing and then a final run with a mandrel cleans up that variation. And using a mandrel is super quick and easy. I use graphite lube and then I am ready to load. Bullets tend to all seat with same force. All the other advice up there makes sense too, BTW. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
280AI Redding Elite Bushing Die Set
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