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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullets vaporizing in mid-air
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<blockquote data-quote="Kevin Thomas" data-source="post: 288818" data-attributes="member: 15748"><p>Glad to help! As I'd said, there's some issues involved that most folks overlook. It's pretty natural to assume that it's strictly a velocity/pressure thing and let it go at that. The encounter that I described with the 6.5x55 pretty well trashed that notion, and that was with another maker's bullet, one that wasn't known for this sort of problem. So there was something else. eric finally nailed this all down, and kudos to him and the Berger crew for sharing the results. from this, yeah, I'd guess there could very well be some difference in the 6 vs 4 grove barrels. Which would be better, I couldn't say. You might discuss this with a barrel maker (it's referred to as aspect ratio by most of them) as to which is likely to cause more friction on the jacket during its passage through the bore. In the meantime, try the "Target" bullets from Berger, and that could very well solve the entire issue. I notice that you were using the "Hunting" version in your original post; these are their original design, with the old-style thin jacket. </p><p> </p><p>Whose barrels are you thinking of, anyway?</p><p> </p><p>Kevin</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 288818, member: 15748"] Glad to help! As I'd said, there's some issues involved that most folks overlook. It's pretty natural to assume that it's strictly a velocity/pressure thing and let it go at that. The encounter that I described with the 6.5x55 pretty well trashed that notion, and that was with another maker's bullet, one that wasn't known for this sort of problem. So there was something else. eric finally nailed this all down, and kudos to him and the Berger crew for sharing the results. from this, yeah, I'd guess there could very well be some difference in the 6 vs 4 grove barrels. Which would be better, I couldn't say. You might discuss this with a barrel maker (it's referred to as aspect ratio by most of them) as to which is likely to cause more friction on the jacket during its passage through the bore. In the meantime, try the "Target" bullets from Berger, and that could very well solve the entire issue. I notice that you were using the "Hunting" version in your original post; these are their original design, with the old-style thin jacket. Whose barrels are you thinking of, anyway? Kevin [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullets vaporizing in mid-air
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