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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
180 Hornady ELD-M bullets blowing up in air
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<blockquote data-quote="Jacob N Brown" data-source="post: 1448329" data-attributes="member: 106103"><p>Glad I was pointed to this forum. Im having this very problem right now. 7mm rem mag. 180gr eldm from a 28" 8.5 twist. From 2800-2950fps they group well. Higher and I start to see key holes and some miss the target entirely. I see evidence of jacket separation on the paper. The problem seemed to subside with a cooler barrel, but as it heated up, the problem was exaserbated. </p><p></p><p>Another individual over at the firing line believes this could be the result of a core separation due to high twist and non bonded bullets, and I think a hot barrel might make that worse by softening the lead core.</p><p></p><p>Also, my bullet seater die leaves a collar around the ogive where it contacts the die. I wonder if this is reducing the structural integrity of the already fragile projectile?</p><p></p><p>I'm eager to hear what you found from Hornady squeeeeze. I'm about to send the rest of these back, but **** they work well when they work...</p></blockquote><p></p>
[QUOTE="Jacob N Brown, post: 1448329, member: 106103"] Glad I was pointed to this forum. Im having this very problem right now. 7mm rem mag. 180gr eldm from a 28" 8.5 twist. From 2800-2950fps they group well. Higher and I start to see key holes and some miss the target entirely. I see evidence of jacket separation on the paper. The problem seemed to subside with a cooler barrel, but as it heated up, the problem was exaserbated. Another individual over at the firing line believes this could be the result of a core separation due to high twist and non bonded bullets, and I think a hot barrel might make that worse by softening the lead core. Also, my bullet seater die leaves a collar around the ogive where it contacts the die. I wonder if this is reducing the structural integrity of the already fragile projectile? I'm eager to hear what you found from Hornady squeeeeze. I'm about to send the rest of these back, but **** they work well when they work... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
180 Hornady ELD-M bullets blowing up in air
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