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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrels: fewer grooves better???
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<blockquote data-quote="chris matthews" data-source="post: 32228" data-attributes="member: 66"><p>The lands in a three groove are very narrow, not at all equal to the width of the grooves.</p><p> The reason they work is they deform or "work" the bullet less than a conventional 6 groove.</p><p> A 5R or polyganol rifled barrel does the same.</p><p> Plus, barrels with odd number of lands and grooves are easier on bullets by the fact that when a land displaces the bullet it has a groove on the opposite side. 6 groove barrel have two lands opposing to squeeze the hell out of the barrel.</p><p> All of this means less pressure/friction/heat to erode the throat.</p><p></p><p>[ 03-07-2004: Message edited by: chris matthews ]</p></blockquote><p></p>
[QUOTE="chris matthews, post: 32228, member: 66"] The lands in a three groove are very narrow, not at all equal to the width of the grooves. The reason they work is they deform or "work" the bullet less than a conventional 6 groove. A 5R or polyganol rifled barrel does the same. Plus, barrels with odd number of lands and grooves are easier on bullets by the fact that when a land displaces the bullet it has a groove on the opposite side. 6 groove barrel have two lands opposing to squeeze the hell out of the barrel. All of this means less pressure/friction/heat to erode the throat. [ 03-07-2004: Message edited by: chris matthews ] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrels: fewer grooves better???
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