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Rifles, Reloading, Optics, Equipment
Reloading
Berger Jacket Limitations with Velocity?
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<blockquote data-quote="Hugnot" data-source="post: 2123246" data-attributes="member: 115658"><p>My ideas on bullet failure are that upon forming the ogive, bullet jacket metal is compressed to form a pointy bullet having a long ogive and during this compression and forming expansion fractures shown longitudinal cracks or zones of weakness are formed at right angles to the compressing force. This could occur in bullets having different jacket thicknesses. Thicker jacketed bullets would undergo more jacket compression and also have the same fractures.</p><p></p><p>Possibly gyroscopic precession might contribute to the failure. A long rapidly spinning bullet having some wobbling about its axis is slammed into air at high velocities.</p><p></p><p>I used to shoot the solid red tip .224 Hornady AMax bullets with great success. The new translucent red tip .224 ELDM bullets have replaced them. Shooting both types of bullets at 3150 to 3200 fps, no problems out of my 7.7 twist 5R, .22-250 - no gray smoke or sideways hits. Lots cheaper to shoot than a .243W and about the same results.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2123246, member: 115658"] My ideas on bullet failure are that upon forming the ogive, bullet jacket metal is compressed to form a pointy bullet having a long ogive and during this compression and forming expansion fractures shown longitudinal cracks or zones of weakness are formed at right angles to the compressing force. This could occur in bullets having different jacket thicknesses. Thicker jacketed bullets would undergo more jacket compression and also have the same fractures. Possibly gyroscopic precession might contribute to the failure. A long rapidly spinning bullet having some wobbling about its axis is slammed into air at high velocities. I used to shoot the solid red tip .224 Hornady AMax bullets with great success. The new translucent red tip .224 ELDM bullets have replaced them. Shooting both types of bullets at 3150 to 3200 fps, no problems out of my 7.7 twist 5R, .22-250 - no gray smoke or sideways hits. Lots cheaper to shoot than a .243W and about the same results. [/QUOTE]
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Berger Jacket Limitations with Velocity?
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