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Rifles, Reloading, Optics, Equipment
Reloading
Loading to magazine length/bent tips
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<blockquote data-quote="CONatureBoy" data-source="post: 2215554" data-attributes="member: 118769"><p>I have a Remington Sendero SS II in 300 RUM. I had a gunsmith install a longer Wyatt's magazine box. That required machining away around 0.07" of the aluminum bedding block where it runs across the stock at the back of the magazine. The gunsmith also machined a little of the steel at the back of the port (I think they call it) on the action proper. Now I can put in the magazine a couple of 210-grain VLD cartridges loaded to a COAL that's within a few thousandths of the lands. My gunsmith says he does this sort of thing all the time. Love it.</p><p></p><p>A bit of elementary physics: if the bullet tip is close to the inner wall of the magazine box, recoil has less time to accelerate the magazine to the rear before making contact with the tip of the bullet. From then on, the bullet will either deform or move with the magazine. Once they're both moving the same speed and direction, subsequent acceleration of both occurs continuously, gradually--not suddenly--which will deform the bullet tip less. A faster-moving magazine will strike the bullet tip with more force. So moving the bullet <em>towards </em>the magazine wall (either by having a <em>longer</em> cartridge or a <em>shorter</em> magazine) is one way to decrease the force on the bullet tip due to the initial impact. Another way is to have a bullet tip that resists deformation. This suggests that a longer magazine box is only a good idea when you need it to hold long-for-caliber cartridges.</p><p></p><p>I'm a little surprised your bullet tips deform. The physics would be pretty obvious to a ballistician.</p></blockquote><p></p>
[QUOTE="CONatureBoy, post: 2215554, member: 118769"] I have a Remington Sendero SS II in 300 RUM. I had a gunsmith install a longer Wyatt's magazine box. That required machining away around 0.07" of the aluminum bedding block where it runs across the stock at the back of the magazine. The gunsmith also machined a little of the steel at the back of the port (I think they call it) on the action proper. Now I can put in the magazine a couple of 210-grain VLD cartridges loaded to a COAL that's within a few thousandths of the lands. My gunsmith says he does this sort of thing all the time. Love it. A bit of elementary physics: if the bullet tip is close to the inner wall of the magazine box, recoil has less time to accelerate the magazine to the rear before making contact with the tip of the bullet. From then on, the bullet will either deform or move with the magazine. Once they're both moving the same speed and direction, subsequent acceleration of both occurs continuously, gradually--not suddenly--which will deform the bullet tip less. A faster-moving magazine will strike the bullet tip with more force. So moving the bullet [I]towards [/I]the magazine wall (either by having a [I]longer[/I] cartridge or a [I]shorter[/I] magazine) is one way to decrease the force on the bullet tip due to the initial impact. Another way is to have a bullet tip that resists deformation. This suggests that a longer magazine box is only a good idea when you need it to hold long-for-caliber cartridges. I'm a little surprised your bullet tips deform. The physics would be pretty obvious to a ballistician. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Loading to magazine length/bent tips
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