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Rifles, Reloading, Optics, Equipment
Reloading
brass weight sorting
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<blockquote data-quote="milanuk" data-source="post: 571265" data-attributes="member: 376"><p>^^^ has to take the cake as one of the more useless posts of the thread... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p></p><p>Anywho... went and pulled 50 virgin untouched i.e. still mangled as delivered from Winchester -> Sinclair -> me. As mentioned before, some nasty stuff for brand new brass - but it seems that what Winchester gave up in forming the stuff they've made up in consistency of weight. These are the few that I didn't bother even running over a mandrel because I already had enough sorted/culled by that point to make (barely) up the 550pcs of match-ready brass I needed for international competition this summer.</p><p></p><p>In the past I've had a spread of as much as 7 full grains over 250pcs of Winchester .308 brass. This stuff, over 50 pcs, is showing a range of about 3.25gn. </p><p></p><p>By comparison, the Lapua Palma .308 brass I ordered and started prepping when I got back from the summer 'vacation' shows a spread of around 2.5gn... for 1000pcs. Virgin untouched out of the box(es) I binned it in batches between 171.00-19 on up to 172.40-59. The stuff at the light end (expanded, trimmed to length, chamfer/deburr, flash-hole reamed, neck-turned, fired, cleaned w/ #0000 steel wool) now weighs 170.5-170.8, and I would expect a similar reduction in weight from the stuff at the 'heavy' end, leaving not much in the way of a spread to separate the pack. That and the 'light' stuff has already been re-sized and primed (I'd forgotten that), so kind of tough to do an apples to apples comparison without firing them again, then doing a volume measurement, and firing the heavy stuff twice, then measuring, the firing again for velocity... </p><p></p><p>I may - if time allows - just run the full gamut with both the regular Lapua and Winchester brass for the sake of comparison.</p><p></p><p>FWIW, the spreadsheet is updated again <a href="https://docs.google.com/spreadsheet/ccc?key=0Ar-pKIld5bpCdHoxVXBVMm1RbllNdG9ZVnVsRFp0OXc" target="_blank">here</a> if anyone cares.</p></blockquote><p></p>
[QUOTE="milanuk, post: 571265, member: 376"] ^^^ has to take the cake as one of the more useless posts of the thread... :rolleyes: Anywho... went and pulled 50 virgin untouched i.e. still mangled as delivered from Winchester -> Sinclair -> me. As mentioned before, some nasty stuff for brand new brass - but it seems that what Winchester gave up in forming the stuff they've made up in consistency of weight. These are the few that I didn't bother even running over a mandrel because I already had enough sorted/culled by that point to make (barely) up the 550pcs of match-ready brass I needed for international competition this summer. In the past I've had a spread of as much as 7 full grains over 250pcs of Winchester .308 brass. This stuff, over 50 pcs, is showing a range of about 3.25gn. By comparison, the Lapua Palma .308 brass I ordered and started prepping when I got back from the summer 'vacation' shows a spread of around 2.5gn... for 1000pcs. Virgin untouched out of the box(es) I binned it in batches between 171.00-19 on up to 172.40-59. The stuff at the light end (expanded, trimmed to length, chamfer/deburr, flash-hole reamed, neck-turned, fired, cleaned w/ #0000 steel wool) now weighs 170.5-170.8, and I would expect a similar reduction in weight from the stuff at the 'heavy' end, leaving not much in the way of a spread to separate the pack. That and the 'light' stuff has already been re-sized and primed (I'd forgotten that), so kind of tough to do an apples to apples comparison without firing them again, then doing a volume measurement, and firing the heavy stuff twice, then measuring, the firing again for velocity... I may - if time allows - just run the full gamut with both the regular Lapua and Winchester brass for the sake of comparison. FWIW, the spreadsheet is updated again [URL="https://docs.google.com/spreadsheet/ccc?key=0Ar-pKIld5bpCdHoxVXBVMm1RbllNdG9ZVnVsRFp0OXc"]here[/URL] if anyone cares. [/QUOTE]
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