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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
50 BMG project
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<blockquote data-quote="bruce_ventura" data-source="post: 932555" data-attributes="member: 34084"><p>Mitch, This thread is making me a little nervous because I'm not hearing you talk about the design margin in the bolt/receiver or the bolt design. </p><p></p><p>I shoot 50 BMG for work using some pretty heavy rounds. I would not get behind a custom rifle unless I knew it was designed with safety as a top priority. I rely on very good ballistics people to develop and test the loads that I shoot. After talking to the designer of my test rifle, I'm convinced the receiver and bolt have good design margins. The gun has been independently tested to insure it can't fire out of battery. After 100's of heavy rounds, the gun is showing no visible wear.</p><p></p><p>I would expect the bolt to prevent the hammer from contacting the firing pin unless the bolt was at least half-way closed. I'm no engineer, but I would expect an adequate receiver design to withstand about 50,000 lbs of force on the bolt in any bolt position for which the hammer can contact the firing pin That's for a 2X design margin on the 65,000 psi internal pressure for a hot 50 BMG load. </p><p></p><p>You've done all your homework on this receiver design, right?</p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 932555, member: 34084"] Mitch, This thread is making me a little nervous because I'm not hearing you talk about the design margin in the bolt/receiver or the bolt design. I shoot 50 BMG for work using some pretty heavy rounds. I would not get behind a custom rifle unless I knew it was designed with safety as a top priority. I rely on very good ballistics people to develop and test the loads that I shoot. After talking to the designer of my test rifle, I'm convinced the receiver and bolt have good design margins. The gun has been independently tested to insure it can't fire out of battery. After 100's of heavy rounds, the gun is showing no visible wear. I would expect the bolt to prevent the hammer from contacting the firing pin unless the bolt was at least half-way closed. I'm no engineer, but I would expect an adequate receiver design to withstand about 50,000 lbs of force on the bolt in any bolt position for which the hammer can contact the firing pin That's for a 2X design margin on the 65,000 psi internal pressure for a hot 50 BMG load. You've done all your homework on this receiver design, right? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
50 BMG project
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