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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Necking down and changing shoulder angle?
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<blockquote data-quote="Brent" data-source="post: 26720" data-attributes="member: 99"><p>Thanks for the help 4mesh. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> I'll keep track of your recommendations if I have to move the shoulder/body junction point lower on another case down the road. My smith in Anchorage has forming dies consisting of a short and long die with 15 different bushings he says will form any case you can imagine up to and including 416 Rigby size. </p><p></p><p>The 30/338 Lapua 40 degree Imp case here will not move anything but the neck shoulder junction back to change the angle to 40 degrees and increase the neck length at the same time. It doesn't change the body/shoulder junction length at all in this design, although it will be blown out in diameter on fire forming considerably.</p><p></p><p>How far apart on the neck bushing sizes you can go and still get the neck started in the next smaller size bushing is what I'm really concerned about. I don't want to buy anymore bushings than I really need for inbetween sizes I'll never use for anything else other than this. <img src="http://images/icons/wink.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>Talk to me about the 40 degree shoulder deal with you and Ken. It's a done deal now as the reamer is being ground already. </p><p></p><p>My smith recommends the 40 on anything other than something you want to feed from the mag, it just requires more work to feed is all but helps with the throat errosion as well.</p></blockquote><p></p>
[QUOTE="Brent, post: 26720, member: 99"] Thanks for the help 4mesh. [img]images/icons/smile.gif[/img] I'll keep track of your recommendations if I have to move the shoulder/body junction point lower on another case down the road. My smith in Anchorage has forming dies consisting of a short and long die with 15 different bushings he says will form any case you can imagine up to and including 416 Rigby size. The 30/338 Lapua 40 degree Imp case here will not move anything but the neck shoulder junction back to change the angle to 40 degrees and increase the neck length at the same time. It doesn't change the body/shoulder junction length at all in this design, although it will be blown out in diameter on fire forming considerably. How far apart on the neck bushing sizes you can go and still get the neck started in the next smaller size bushing is what I'm really concerned about. I don't want to buy anymore bushings than I really need for inbetween sizes I'll never use for anything else other than this. [img]images/icons/wink.gif[/img] Talk to me about the 40 degree shoulder deal with you and Ken. It's a done deal now as the reamer is being ground already. My smith recommends the 40 on anything other than something you want to feed from the mag, it just requires more work to feed is all but helps with the throat errosion as well. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Necking down and changing shoulder angle?
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