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Winter Curiosity
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<blockquote data-quote="liltank" data-source="post: 1042800" data-attributes="member: 13275"><p>So I have seen American Sniper (Awesome flick), and of course the bad guy uses an AK-74 sniper system which uses the 7.62x54. It got me thinking if it is a better cartridge than a .308. When you look at the casing, there is a size difference and a considerable taper. We took some measurements and H2O tests. The 7.62x54 holds 66.1grns or H2Owhere the .308 (My RWS brass) holds 56.7 grains of H2O. So there is a 10 grain difference (Rounding up for you guys that like to be particular <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />.... ok 9grns) in water weight. So what would be the performance difference with a modern action, barrel, using .308 bullets in a .308 barrel (instead of .310 or .311), with matching dies? How much better would it be if you were to Ackley that sucker and knock the taper out, sharpen the shoulder, and use up a little bit of that long neck it has in comparison to the .308? Hence the title ;D!Winter kills me, too much thinking time!!!!</p><p></p><p>Tank</p></blockquote><p></p>
[QUOTE="liltank, post: 1042800, member: 13275"] So I have seen American Sniper (Awesome flick), and of course the bad guy uses an AK-74 sniper system which uses the 7.62x54. It got me thinking if it is a better cartridge than a .308. When you look at the casing, there is a size difference and a considerable taper. We took some measurements and H2O tests. The 7.62x54 holds 66.1grns or H2Owhere the .308 (My RWS brass) holds 56.7 grains of H2O. So there is a 10 grain difference (Rounding up for you guys that like to be particular :P.... ok 9grns) in water weight. So what would be the performance difference with a modern action, barrel, using .308 bullets in a .308 barrel (instead of .310 or .311), with matching dies? How much better would it be if you were to Ackley that sucker and knock the taper out, sharpen the shoulder, and use up a little bit of that long neck it has in comparison to the .308? Hence the title ;D!Winter kills me, too much thinking time!!!! Tank [/QUOTE]
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