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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New GSC 338 LRH bullets.
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<blockquote data-quote="BryanLitz" data-source="post: 1046120" data-attributes="member: 7848"><p>Mr Schultz,</p><p></p><p>You stated:</p><p></p><p></p><p></p><p>This is not accurate.</p><p></p><p>I've tested (measured time of flight over long range) many bullets in various twist rifles. Faster twist produces equal or higher BC's, not lower. They myth of small arms bullets 'failing to trace' comes from high angle artillery fire where the scale and angles are dramatically different.</p><p></p><p>You can read about these live fire experiments in: <a href="http://store.appliedballisticsllc.com/ProductDetails.asp?ProductCode=0004" target="_blank">Modern Advancements in Long Range Shooting: Volume I</a></p><p></p><p>The first part of this book explores many questions related to twist rate including drag in supersonic and transonic flight with extensive instrumented live fire.</p><p></p><p>There's a great deal of evidence supporting equal or higher BC's for faster twist, even as SG exceeds 2.0, 2.5, 3.0+</p><p></p><p></p><p></p><p>I've tested many of your bullets, as well as other solids and conventional bullets using a common method. The results are published in: "Ballistic Performance of Rifle Bullets":</p><p><a href="https://store.appliedballisticsllc.com/ProductDetails.asp?ProductCode=0005" target="_blank">https://store.appliedballisticsllc.com/ProductDetails.asp?ProductCode=0005</a></p><p></p><p>You can make meaningful comparisons of BC's which are tested using common methods, and averaged over the same velocity bands. That's what I've done an published in the above reference. Tested BC's of GS Custom bullets fall consistently short of the computer predicted values on your site both as averages, and at specific velocities.</p><p></p><p></p><p></p><p>I agree; if you're going to use G1 BC's it's best to piece-wise define them with velocity. Better yet, use a BC referenced to the G7 standard which has less variation with velocity as compared to G1's. </p><p></p><p>Even still, averaged G1 BC's can be quite useful, if they're averaged for the range you're shooting. And you can compare bullets' performance by comparing their G1 BC's which are averaged over the same velocity range.</p><p></p><p>-Bryan</p></blockquote><p></p>
[QUOTE="BryanLitz, post: 1046120, member: 7848"] Mr Schultz, You stated: This is not accurate. I've tested (measured time of flight over long range) many bullets in various twist rifles. Faster twist produces equal or higher BC's, not lower. They myth of small arms bullets 'failing to trace' comes from high angle artillery fire where the scale and angles are dramatically different. You can read about these live fire experiments in: [url=http://store.appliedballisticsllc.com/ProductDetails.asp?ProductCode=0004]Modern Advancements in Long Range Shooting: Volume I[/url] The first part of this book explores many questions related to twist rate including drag in supersonic and transonic flight with extensive instrumented live fire. There's a great deal of evidence supporting equal or higher BC's for faster twist, even as SG exceeds 2.0, 2.5, 3.0+ I've tested many of your bullets, as well as other solids and conventional bullets using a common method. The results are published in: "Ballistic Performance of Rifle Bullets": [url]https://store.appliedballisticsllc.com/ProductDetails.asp?ProductCode=0005[/url] You can make meaningful comparisons of BC's which are tested using common methods, and averaged over the same velocity bands. That's what I've done an published in the above reference. Tested BC's of GS Custom bullets fall consistently short of the computer predicted values on your site both as averages, and at specific velocities. I agree; if you're going to use G1 BC's it's best to piece-wise define them with velocity. Better yet, use a BC referenced to the G7 standard which has less variation with velocity as compared to G1's. Even still, averaged G1 BC's can be quite useful, if they're averaged for the range you're shooting. And you can compare bullets' performance by comparing their G1 BC's which are averaged over the same velocity range. -Bryan [/QUOTE]
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New GSC 338 LRH bullets.
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