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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New GSC 338 LRH bullets.
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<blockquote data-quote="Gerard Schultz" data-source="post: 1050361" data-attributes="member: 51"><p>Mr Litz <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p> </p><p></p><p>I use the same units as everybody else does and say this about the GSC BC numbers on our bullet technical profile pages: "BC values are calculated at standard Metro values using a G1 profile. Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. Enter these values into an external ballistics program to calculate BC for your launch speed and distance. For exact values, shoot drop tables at the elevation and temperature for your location."</p><p></p><p>I am going to say this once more:</p><p></p><p>1. As long as you average G1 BC numbers, you have lost before you started because your averaged number will be wrong. It cannot be done. If you wear a #10 shoe and buy a #8 for the left foot and a #12 for the right, on average you have the right size but neither is going to be the correct fit.</p><p></p><p>2. BC changes with speed and our BC numbers are intended to be used to calibrate a ballistics program so that it calculates correctly. For example, have a look at this page: <a href="http://www.gscustomusa.com/416500HV298.html" target="_blank">GS CUSTOM USA - Bullet Technical Profile</a> How do you propose getting a 500gr 416 caliber bullet to 4300fps? It cannot be done. The numbers we give are purely to calibrate ballistics programs and nothing else. We even say that it cannot be used for comparison with other tested methods because everyone uses a different method. Why do you do this then, unless it is to 'advertise' the correctness of your method?</p><p></p><p>Your method, or Kiwi Greg's method is not wrong, that is what you found on the day, but it does not mean that the numbers we give are wrong, as you state. We do not 'advertise' BC numbers, we give them purely to calibrate ballistics programs. Your figures may be right on the day but your statement that our numbers are inflated is wrong.</p><p></p><p>This is why we say: "For excact values, shoot drop tables at the elevation and temperature for your location."</p><p></p><p>Let me know if there is something that you do not understand in this, I would be happy to try to explain.</p></blockquote><p></p>
[QUOTE="Gerard Schultz, post: 1050361, member: 51"] Mr Litz :) I use the same units as everybody else does and say this about the GSC BC numbers on our bullet technical profile pages: "BC values are calculated at standard Metro values using a G1 profile. Any comparison with the BC values of other manufacturers is not valid as there is currently no standard method in use between manufacturers. Enter these values into an external ballistics program to calculate BC for your launch speed and distance. For exact values, shoot drop tables at the elevation and temperature for your location." I am going to say this once more: 1. As long as you average G1 BC numbers, you have lost before you started because your averaged number will be wrong. It cannot be done. If you wear a #10 shoe and buy a #8 for the left foot and a #12 for the right, on average you have the right size but neither is going to be the correct fit. 2. BC changes with speed and our BC numbers are intended to be used to calibrate a ballistics program so that it calculates correctly. For example, have a look at this page: [url=http://www.gscustomusa.com/416500HV298.html]GS CUSTOM USA - Bullet Technical Profile[/url] How do you propose getting a 500gr 416 caliber bullet to 4300fps? It cannot be done. The numbers we give are purely to calibrate ballistics programs and nothing else. We even say that it cannot be used for comparison with other tested methods because everyone uses a different method. Why do you do this then, unless it is to 'advertise' the correctness of your method? Your method, or Kiwi Greg's method is not wrong, that is what you found on the day, but it does not mean that the numbers we give are wrong, as you state. We do not 'advertise' BC numbers, we give them purely to calibrate ballistics programs. Your figures may be right on the day but your statement that our numbers are inflated is wrong. This is why we say: "For excact values, shoot drop tables at the elevation and temperature for your location." Let me know if there is something that you do not understand in this, I would be happy to try to explain. [/QUOTE]
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New GSC 338 LRH bullets.
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