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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Understanding cartridge efficiency
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<blockquote data-quote="Lefty7mmstw" data-source="post: 1915359" data-attributes="member: 48043"><p>A lot of these guys are simply comparing apples and grapefruit... They wind up their sharp shouldered wonder boomer until the primer pockets start to fail and decry victory as the thing ejected without welding to the bolt. The higher taper shallower shouldered cartridges can't be loaded quite as hot before they get sticky ejection so they'll not ever be run as hard by someone who has ever heard of the "shoe" test.</p><p>Modern brass has given us the ability to go quite a bit over the normal 65Kpsi top end without killing brass so what some think of as more efficient is really just more tolerant of overloading.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 1915359, member: 48043"] A lot of these guys are simply comparing apples and grapefruit... They wind up their sharp shouldered wonder boomer until the primer pockets start to fail and decry victory as the thing ejected without welding to the bolt. The higher taper shallower shouldered cartridges can't be loaded quite as hot before they get sticky ejection so they'll not ever be run as hard by someone who has ever heard of the "shoe" test. Modern brass has given us the ability to go quite a bit over the normal 65Kpsi top end without killing brass so what some think of as more efficient is really just more tolerant of overloading. [/QUOTE]
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Understanding cartridge efficiency
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