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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5mm 150g ABLR.
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<blockquote data-quote="ImBillT" data-source="post: 3072736" data-attributes="member: 117715"><p>Your "pencilling through" is a result of using a line of Bergers not labeled "hunting". Berger themselves state that in their own testing the thicker jackets they use on their non-hunting bullets gave them unreliable expansion in testing. Their "Hunting" line uses the original VLD jacket thickness and gets tested on ballistic gel. All of their non-hunting bullets use the thicker jackets original named "VLD Thick" which they started making after mid air blowups started occurring with regular VLDs.</p><p></p><p>Your disintegrating is what Berger hunting bullets usually do. If you don't like that, Berger's are not for you.</p><p></p><p>I have had one Berger "yaw" in an animal, and have heard of it happening as well. Every instance that I hear of it happening has been one of the heavier bullets for caliber, and I would suspect is marginally stable. The one that I had yaw had an SG of about 1.3. I contacted Berger and they didn't seem to think that would have been the cause, but after encountering more reports of tumbling or yawing in the animal, I suspect that it occurs when the SG is too far below 1.5. Compounding that problem, Berger's older twist recommendations would give you an SG around 1.5 at sea level, but since Lapua bought them out, their twist recommendations have been revised to be too slow to achieve a 1.5 SG. Why Lapua did that is beyond me, but it has done hunters a disservice.</p><p></p><p>What twist did you have when shooting the 156?</p><p></p><p>Your elevation is not the problem.</p><p></p><p>That 215 Hybrid, despite not being part of the hunting line, did have an excellent reputation on game. I think that was probably just a fluke. Since determining the VLD Thick did not open reliably, Berger does not test any bullets outside of their hunting like on ballistics gel to make sure they open consistently.</p><p></p><p>The only kill I have with the 156 however, was disappointing for me. It exited the mule deer leaving about a 2" diameter exit, and made maybe a .5" diameter hole in the lungs. It's the only animal I've hit in the chest with a Berger that took more than a step or two, and it ran a solid 75+ yards. Thats not enough to say there is a problem with the 156, but there certainly could be. 140's have all penciled in 3-6", and fragmented violently in the lungs. Same with 190VLDs in 30cal.</p></blockquote><p></p>
[QUOTE="ImBillT, post: 3072736, member: 117715"] Your "pencilling through" is a result of using a line of Bergers not labeled "hunting". Berger themselves state that in their own testing the thicker jackets they use on their non-hunting bullets gave them unreliable expansion in testing. Their "Hunting" line uses the original VLD jacket thickness and gets tested on ballistic gel. All of their non-hunting bullets use the thicker jackets original named "VLD Thick" which they started making after mid air blowups started occurring with regular VLDs. Your disintegrating is what Berger hunting bullets usually do. If you don't like that, Berger's are not for you. I have had one Berger "yaw" in an animal, and have heard of it happening as well. Every instance that I hear of it happening has been one of the heavier bullets for caliber, and I would suspect is marginally stable. The one that I had yaw had an SG of about 1.3. I contacted Berger and they didn't seem to think that would have been the cause, but after encountering more reports of tumbling or yawing in the animal, I suspect that it occurs when the SG is too far below 1.5. Compounding that problem, Berger's older twist recommendations would give you an SG around 1.5 at sea level, but since Lapua bought them out, their twist recommendations have been revised to be too slow to achieve a 1.5 SG. Why Lapua did that is beyond me, but it has done hunters a disservice. What twist did you have when shooting the 156? Your elevation is not the problem. That 215 Hybrid, despite not being part of the hunting line, did have an excellent reputation on game. I think that was probably just a fluke. Since determining the VLD Thick did not open reliably, Berger does not test any bullets outside of their hunting like on ballistics gel to make sure they open consistently. The only kill I have with the 156 however, was disappointing for me. It exited the mule deer leaving about a 2” diameter exit, and made maybe a .5” diameter hole in the lungs. It’s the only animal I’ve hit in the chest with a Berger that took more than a step or two, and it ran a solid 75+ yards. Thats not enough to say there is a problem with the 156, but there certainly could be. 140’s have all penciled in 3-6”, and fragmented violently in the lungs. Same with 190VLDs in 30cal. [/QUOTE]
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