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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Berger VLD vs Berger Match Hunting VLD
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<blockquote data-quote="Mikecr" data-source="post: 690718" data-attributes="member: 1521"><p>Here's a formula to show Berger VLD RPM limit:</p><p>KRPM limit=((0.308-YOUR CAL)*238.095+290)</p><p>KRPM =(720*MV/TW)/1000</p><p></p><p>I put it together based on many failure discussions, many years ago. </p><p>And nothing has changed with VLDs.</p><p></p><p>The failure here usually occurs with the combination RPMs and heat produced in achieving them.</p><p>Of course a rough barrel don't help either.</p><p>While I was watching VLD failures it was obvious that HUNTERS were causing them by far.</p><p>That is, hunters using extreme overbore cartridges, that successful target shooters would not be using anyway.</p><p></p><p>I know they want a good hunting market & VLDs are good hunting bullets.</p><p>I never had an issue with VLDs in hunting or target shooting because I payed mind to the limits defined.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 690718, member: 1521"] Here's a formula to show Berger VLD RPM limit: KRPM limit=((0.308-YOUR CAL)*238.095+290) KRPM =(720*MV/TW)/1000 I put it together based on many failure discussions, many years ago. And nothing has changed with VLDs. The failure here usually occurs with the combination RPMs and heat produced in achieving them. Of course a rough barrel don't help either. While I was watching VLD failures it was obvious that HUNTERS were causing them by far. That is, hunters using extreme overbore cartridges, that successful target shooters would not be using anyway. I know they want a good hunting market & VLDs are good hunting bullets. I never had an issue with VLDs in hunting or target shooting because I payed mind to the limits defined. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Berger VLD vs Berger Match Hunting VLD
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