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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
VLD's, ULD RBBT's, SMK's, etc
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<blockquote data-quote="Fiftydriver" data-source="post: 158646" data-attributes="member: 10"><p><strong>Re: VLD\'s, ULD RBBT\'s, SMK\'s, etc</strong></p><p></p><p>Metau,</p><p></p><p>Giving a fixed velocity range for your questions would be very hard to do. The reason is because there are so many variables in these bullets. Comparing a Berger VLD to a SMK is hard to do because the SMK has a MUCH thicker jacket and will not expand as easily as a thin j-4 jacketed Berger bullet.</p><p></p><p>Some of the Wildcat ULD RBBTs have jackets that are heavy enough they would punch clear through any bullet elk on the planet when shot at any range at any velocity. This is one bonus of going with custom bullets, you can often get them to serve a specific purpose.</p><p></p><p>The reason I use the ULD RBBTs in my Allen Magnums is for the specific reason both of you are referring to. They are ballistically amazing at long range and carry an extreme amount of velocity and energy out to a very long distance and still open up well at long range with the jackets we are using.</p><p></p><p>Also, they are very heavy with high SD numbers so for close range shots, even though they may well loose over 50% of their total weight, they still have alot to easily get the job done penetration wise.</p><p></p><p>Velocity wise, if your bullet impacts will be over 2800 fps you should be using a pretty stout bullet. IF your impacts will be over 3000 fps, you need a seriously stout bullet.</p><p></p><p>When impact velocities drop under 2500 fps, most bullets will work well.</p><p></p><p>At impact velocites below 2200 fps or so, you really need a soft bullet or a bullet with an expansion initiator such as a tipped bullet to insure good expansion at these velocity levels and below.</p><p></p><p>Again, no clear cut numbers, just general references and just my opinon as well. Ask 10 different people and thats how many different opinions you will likely get.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 158646, member: 10"] [b]Re: VLD\'s, ULD RBBT\'s, SMK\'s, etc[/b] Metau, Giving a fixed velocity range for your questions would be very hard to do. The reason is because there are so many variables in these bullets. Comparing a Berger VLD to a SMK is hard to do because the SMK has a MUCH thicker jacket and will not expand as easily as a thin j-4 jacketed Berger bullet. Some of the Wildcat ULD RBBTs have jackets that are heavy enough they would punch clear through any bullet elk on the planet when shot at any range at any velocity. This is one bonus of going with custom bullets, you can often get them to serve a specific purpose. The reason I use the ULD RBBTs in my Allen Magnums is for the specific reason both of you are referring to. They are ballistically amazing at long range and carry an extreme amount of velocity and energy out to a very long distance and still open up well at long range with the jackets we are using. Also, they are very heavy with high SD numbers so for close range shots, even though they may well loose over 50% of their total weight, they still have alot to easily get the job done penetration wise. Velocity wise, if your bullet impacts will be over 2800 fps you should be using a pretty stout bullet. IF your impacts will be over 3000 fps, you need a seriously stout bullet. When impact velocities drop under 2500 fps, most bullets will work well. At impact velocites below 2200 fps or so, you really need a soft bullet or a bullet with an expansion initiator such as a tipped bullet to insure good expansion at these velocity levels and below. Again, no clear cut numbers, just general references and just my opinon as well. Ask 10 different people and thats how many different opinions you will likely get. Kirby Allen(50) [/QUOTE]
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