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Notes on the Centenerian
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<blockquote data-quote="nicholasjohn" data-source="post: 1634964" data-attributes="member: 109113"><p>It's basic physics, really. Greater case capacity will deliver more velocity. Period. So will loading to higher pressures. The main reason the .308 came on the scene with the capability to deliver most of the performance of the 30-06 was because they had developed new powders since the '06 was designed, and better steel for barrels that could handle more pressure. We have still more newer powders today, many years after the .308 was introduced, and the performance of BOTH cartridges benefits from these. When loaded to normal pressures for each cartridge, the 30-06 can reach the lower end of .300 magnum performance. So can the .308 reach the lower end of 30-06 performance. These are cartridges of three different performance categories, and these three categories have some overlap. The same thing can be seen when comparing the .270 Win. with other .270 cartridges of larger case capacity, or the 7 X 57 with the .280 and 7mm magnums. The levels of performance are all stacked in order of cartridge case capacity. There is no magic here.</p></blockquote><p></p>
[QUOTE="nicholasjohn, post: 1634964, member: 109113"] It's basic physics, really. Greater case capacity will deliver more velocity. Period. So will loading to higher pressures. The main reason the .308 came on the scene with the capability to deliver most of the performance of the 30-06 was because they had developed new powders since the '06 was designed, and better steel for barrels that could handle more pressure. We have still more newer powders today, many years after the .308 was introduced, and the performance of BOTH cartridges benefits from these. When loaded to normal pressures for each cartridge, the 30-06 can reach the lower end of .300 magnum performance. So can the .308 reach the lower end of 30-06 performance. These are cartridges of three different performance categories, and these three categories have some overlap. The same thing can be seen when comparing the .270 Win. with other .270 cartridges of larger case capacity, or the 7 X 57 with the .280 and 7mm magnums. The levels of performance are all stacked in order of cartridge case capacity. There is no magic here. [/QUOTE]
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