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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel rate of twist
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<blockquote data-quote="amce" data-source="post: 948337" data-attributes="member: 36750"><p>The McCoy calculator also requires some input that I, for one, have not seen in manufacturers catalogues or web sites:</p><p>- head shape parameter</p><p>- ogive length</p><p>- density (is this grams per cubic centimetre or grains per cubic centimetre? One must be wary of abbreviations)</p><p></p><p>Most bullet makers don't even provide length info.</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="amce, post: 948337, member: 36750"] The McCoy calculator also requires some input that I, for one, have not seen in manufacturers catalogues or web sites: - head shape parameter - ogive length - density (is this grams per cubic centimetre or grains per cubic centimetre? One must be wary of abbreviations) Most bullet makers don't even provide length info. Cheers [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel rate of twist
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