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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22BR that dosent extract Lapua brass?
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<blockquote data-quote="7stw" data-source="post: 3033372" data-attributes="member: 22854"><p>Action is a savage model 10. I used go-no go gages. I put one piece of tape on the go gage, screwed in the barrel, and tightened. I confess, that I may be a little tight on headspace. My case forming process, is while it is still 6mm, I trimmed it back to 1.520. Lubed and ran it through the FL, S die, with expander in place, just to iron out the inner neck. Then, I final trimmed it to 1.510.</p><p>Now, I have to turn the necks, .001.</p><p>My chamber neck dimension is .250.</p><p>After turning necks, my outside dimension, loaded, is .248-2485. I use the same process on the Norma, and Peterson brass also.</p><p>If I had it to do again, I'd go with a</p><p>.252-.254 neck. It's amazing how much out of round the brass is, even virgin. Peterson seems to very concentric.</p><p>I'd like to shoot the Lapua , but the gun shoots nearly one hole groups with either of the two. I've measure the brass, seven ways from Sunday, and I can't find any dimensional differences.</p><p>This brass, fits in my 6br, shoots and extracts perfectly. Similar rifle, Shilen pre fit, m12 action. A friend recommended trying a few, from a different lot#. When I turn the necks, I set the stop, right at the juncture. Neck wall thickness is .0125. Befuddled!</p><p>Oh, I forgot to mention, that after turning, I ran it back through the FL bushing die, without the expander, loaded and seated.</p></blockquote><p></p>
[QUOTE="7stw, post: 3033372, member: 22854"] Action is a savage model 10. I used go-no go gages. I put one piece of tape on the go gage, screwed in the barrel, and tightened. I confess, that I may be a little tight on headspace. My case forming process, is while it is still 6mm, I trimmed it back to 1.520. Lubed and ran it through the FL, S die, with expander in place, just to iron out the inner neck. Then, I final trimmed it to 1.510. Now, I have to turn the necks, .001. My chamber neck dimension is .250. After turning necks, my outside dimension, loaded, is .248-2485. I use the same process on the Norma, and Peterson brass also. If I had it to do again, I'd go with a .252-.254 neck. It's amazing how much out of round the brass is, even virgin. Peterson seems to very concentric. I'd like to shoot the Lapua , but the gun shoots nearly one hole groups with either of the two. I've measure the brass, seven ways from Sunday, and I can't find any dimensional differences. This brass, fits in my 6br, shoots and extracts perfectly. Similar rifle, Shilen pre fit, m12 action. A friend recommended trying a few, from a different lot#. When I turn the necks, I set the stop, right at the juncture. Neck wall thickness is .0125. Befuddled! Oh, I forgot to mention, that after turning, I ran it back through the FL bushing die, without the expander, loaded and seated. [/QUOTE]
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22BR that dosent extract Lapua brass?
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