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Rifles, Reloading, Optics, Equipment
Reloading
7x57 Mauser--Is anyone loading this cartridge to its potential?
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<blockquote data-quote="Calamity" data-source="post: 1885943" data-attributes="member: 112048"><p>Thanks, guys. I found this:</p><p>[URL unfurl="true"]http://www.accuratereloading.com/757ackley.html[/URL]</p><p>There are several 7x57AI forum discussions, including some discussions in this LRH forum: <a href="https://duckduckgo.com/?q=%227x57AI%22+ballistics&norw=1&t=ffhp&atb=v113-1&ia=web" target="_blank">https://duckduckgo.com/?q="7x57AI"+ballistics&norw=1&t=ffhp&atb=v113-1&ia=web</a> </p><p>But very little actual test data. The anecdotal consensus appears to be that the 7x57AI duplicates .280 Rem ballistics, and does it more efficiently, with good accuracy. With 180 gr ELD bullets it equals a factory 180 gr 30/06 @2700 fps MV, but as the range extends the higher BC 7mm retains velocity and energy better than the '06. According to one user, it is still supersonic @1000 yds with 1000 ft-lbs of energy. One thread touts the 7x57AI as a frequent build for F-class competition. Another claims his 7x57AI pushes 139gr bullets a bit over 3000 fps from a 24" barrel. It seems that the popularity of the 7mm-08 is simply the lack of promotion/knowledge of the 7x57, which is still popular in Europe and other countries. According to the bullet makers, a 1:8 twist appears optimal for the 175-195 wt bullets.</p></blockquote><p></p>
[QUOTE="Calamity, post: 1885943, member: 112048"] Thanks, guys. I found this: [URL unfurl="true"]http://www.accuratereloading.com/757ackley.html[/URL] There are several 7x57AI forum discussions, including some discussions in this LRH forum: [URL]https://duckduckgo.com/?q=%227x57AI%22+ballistics&norw=1&t=ffhp&atb=v113-1&ia=web[/URL] But very little actual test data. The anecdotal consensus appears to be that the 7x57AI duplicates .280 Rem ballistics, and does it more efficiently, with good accuracy. With 180 gr ELD bullets it equals a factory 180 gr 30/06 @2700 fps MV, but as the range extends the higher BC 7mm retains velocity and energy better than the '06. According to one user, it is still supersonic @1000 yds with 1000 ft-lbs of energy. One thread touts the 7x57AI as a frequent build for F-class competition. Another claims his 7x57AI pushes 139gr bullets a bit over 3000 fps from a 24" barrel. It seems that the popularity of the 7mm-08 is simply the lack of promotion/knowledge of the 7x57, which is still popular in Europe and other countries. According to the bullet makers, a 1:8 twist appears optimal for the 175-195 wt bullets. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7x57 Mauser--Is anyone loading this cartridge to its potential?
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