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Rifles, Reloading, Optics, Equipment
Reloading
Fire-forming 280 Ackley Improved from Lapua 30-06?
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<blockquote data-quote="eddybo" data-source="post: 435459" data-attributes="member: 7194"><p>If you turn your necks to thickness first you should not have a problem leaving a false shoulder. I would use .280 dies with an appropriate sized bushing to create the shoulder. The only reason I suggest neck turning first is so that you do not have to neck them down, then turn them, then size them up, then partially size them down. The brass may thicken slightly when you size it down so use a ball mic to make sure that your desired thickness is obtained. To create your false shoulder I would set my die to fully size the brass. Then I would use a spacer under the die to hold the die short. I have a bunch of different thickness 7/8 washers that I use for this. It has been a loong time since I did this but am thinking that I had to use 4 .015 washers to give me a crush fit on the 06 cases, but my chamber may differ from yours. It can be done but I would not solely rely on using the bullet to keep the case against the bolt face, IMO a false shoulder is the best way. If you just have to have the lapua brass as I did it is a bunch more work and may not be worth the gains. If I had it to do over I would probably just use the nosler brass even though it is softer than the lapua.</p></blockquote><p></p>
[QUOTE="eddybo, post: 435459, member: 7194"] If you turn your necks to thickness first you should not have a problem leaving a false shoulder. I would use .280 dies with an appropriate sized bushing to create the shoulder. The only reason I suggest neck turning first is so that you do not have to neck them down, then turn them, then size them up, then partially size them down. The brass may thicken slightly when you size it down so use a ball mic to make sure that your desired thickness is obtained. To create your false shoulder I would set my die to fully size the brass. Then I would use a spacer under the die to hold the die short. I have a bunch of different thickness 7/8 washers that I use for this. It has been a loong time since I did this but am thinking that I had to use 4 .015 washers to give me a crush fit on the 06 cases, but my chamber may differ from yours. It can be done but I would not solely rely on using the bullet to keep the case against the bolt face, IMO a false shoulder is the best way. If you just have to have the lapua brass as I did it is a bunch more work and may not be worth the gains. If I had it to do over I would probably just use the nosler brass even though it is softer than the lapua. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Fire-forming 280 Ackley Improved from Lapua 30-06?
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