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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Lapua Velocities
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<blockquote data-quote="Fiftydriver" data-source="post: 303322" data-attributes="member: 10"><p>Edward,</p><p> </p><p>You offer a great bit of information and something I had forgotten. When I was doing load development for my 7mm AM, 300 AX and 338 AX, I did use Norma 338 Lapua brass for exactly the reasons you state. The Norma brass is quite soft, in fact a bit softer then Remington RUM brass on average. I would do load development until the primer pockets would just begin to loosen up and then back off a couple grains and measure muzzle velocity.</p><p> </p><p>I would then switch over to the Lapua brass and adjust the load as needed to match velocity. This told me that I was in the 65-68,000 psi load range, right where any modern loaded magnum should be for proper powder burn.</p><p> </p><p>Again, great tip!!!</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 303322, member: 10"] Edward, You offer a great bit of information and something I had forgotten. When I was doing load development for my 7mm AM, 300 AX and 338 AX, I did use Norma 338 Lapua brass for exactly the reasons you state. The Norma brass is quite soft, in fact a bit softer then Remington RUM brass on average. I would do load development until the primer pockets would just begin to loosen up and then back off a couple grains and measure muzzle velocity. I would then switch over to the Lapua brass and adjust the load as needed to match velocity. This told me that I was in the 65-68,000 psi load range, right where any modern loaded magnum should be for proper powder burn. Again, great tip!!! [/QUOTE]
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338 Lapua Velocities
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