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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to over come overbore?
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<blockquote data-quote="Mikecr" data-source="post: 64209" data-attributes="member: 1521"><p>In my view "overbore" can be used to describe a cartridge offering under 1000rnds of barrel life.</p><p>It's original definition was short sighted at best, given that todays powder availability nixes the possibility of actually being overbore(unless you use the wrong powder).</p><p>There are 'magic' ratios described in patents, which affect efficiency alittle. And you can figure that maximum velocity/lowest muzzle pressure for a given cartridge can be had with a particular powder/barrel length combo. But for the most part, -powder amount to bore area- sets barrel life more than anything else.</p><p>This is really the limiting factor w/regards to popularity.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 64209, member: 1521"] In my view "overbore" can be used to describe a cartridge offering under 1000rnds of barrel life. It's original definition was short sighted at best, given that todays powder availability nixes the possibility of actually being overbore(unless you use the wrong powder). There are 'magic' ratios described in patents, which affect efficiency alittle. And you can figure that maximum velocity/lowest muzzle pressure for a given cartridge can be had with a particular powder/barrel length combo. But for the most part, -powder amount to bore area- sets barrel life more than anything else. This is really the limiting factor w/regards to popularity. [/QUOTE]
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How to over come overbore?
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