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The Range
Ammo & Reloading
Question on .308 neck expansion
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<blockquote data-quote="Sgt Dog" data-source="post: 3837054" data-attributes="member: 15840"><p>Swampratt, very generous offer on the lube.</p><p></p><p>Here’s the reason for the question. First, I have 800-900 cases I’d like to fill. </p><p></p><p>I’ve been off on a Black Powder Cartridge Rifle (BPCR) tangent for about six years, casting and loading for matches. Before that it was vintage levers. With Cast bullets its pretty standard to use an expander such as this. I do, for anywhere from 32-40 to 45-70. I’ve not dabbled with high-velocity bottlenecks and jacketed bullets nearly so much. I have for the M1A and want to for the AR-.308. But dang I don’t like those buttons on the decapping spindle and the way they feel on the upstroke. And too, if I wanted to control neck tension more, your plunger could be tailored for that. </p><p></p><p>But, I’ve never tried polishing one so there is that. But I did have the thought that possibly a guy might get away without lubing the necks if using a straight-walled expander. There is no need for inside lube with a 32-40, 35-40, 38-55, 40-65 or 45-70! But those are all straight-wall and I’ve never even felt handle pressure behind the ram doing it for a 30 cal bottleneck so just didn’t know. </p><p></p><p>But what would you gain by not lubing the necks a person would rightly want to know. And I was thinking you’d do away with a second tumbling to get rid of lube. Maybe not, if you thought you’d still need to tumble to get rid of the lube on the outside of the case.</p><p></p><p>Anyway - that is the long way of explaining why I asked the questions. If I saved a second tumbling on eight or 900 cases and got an exact neck tension, that wouldn’t be nothing. Then again I’ve had some boneheaded ideas before in my time at the loading bench.</p><p></p><p>At any rate, I appreciate your response and again the offer is very gracious.</p></blockquote><p></p>
[QUOTE="Sgt Dog, post: 3837054, member: 15840"] Swampratt, very generous offer on the lube. Here’s the reason for the question. First, I have 800-900 cases I’d like to fill. I’ve been off on a Black Powder Cartridge Rifle (BPCR) tangent for about six years, casting and loading for matches. Before that it was vintage levers. With Cast bullets its pretty standard to use an expander such as this. I do, for anywhere from 32-40 to 45-70. I’ve not dabbled with high-velocity bottlenecks and jacketed bullets nearly so much. I have for the M1A and want to for the AR-.308. But dang I don’t like those buttons on the decapping spindle and the way they feel on the upstroke. And too, if I wanted to control neck tension more, your plunger could be tailored for that. But, I’ve never tried polishing one so there is that. But I did have the thought that possibly a guy might get away without lubing the necks if using a straight-walled expander. There is no need for inside lube with a 32-40, 35-40, 38-55, 40-65 or 45-70! But those are all straight-wall and I’ve never even felt handle pressure behind the ram doing it for a 30 cal bottleneck so just didn’t know. But what would you gain by not lubing the necks a person would rightly want to know. And I was thinking you’d do away with a second tumbling to get rid of lube. Maybe not, if you thought you’d still need to tumble to get rid of the lube on the outside of the case. Anyway - that is the long way of explaining why I asked the questions. If I saved a second tumbling on eight or 900 cases and got an exact neck tension, that wouldn’t be nothing. Then again I’ve had some boneheaded ideas before in my time at the loading bench. At any rate, I appreciate your response and again the offer is very gracious. [/QUOTE]
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