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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore size of 7mm barrel?
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<blockquote data-quote="J E Custom" data-source="post: 433308" data-attributes="member: 2736"><p>Some barrel makers give you the land diameter and others give you the groove diameter, and</p><p>some give you both.</p><p></p><p>The ones that give you the land or both diameter's are normally cut rifling and they are telling</p><p>you how deep the grooves are. (.284 groove Dia. and a .277 land Dia. = .0035 groove depth, or </p><p>three and one half thousandths).</p><p></p><p>But just to make sure I would call them and verify that it is for a .284 bullet.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 433308, member: 2736"] Some barrel makers give you the land diameter and others give you the groove diameter, and some give you both. The ones that give you the land or both diameter's are normally cut rifling and they are telling you how deep the grooves are. (.284 groove Dia. and a .277 land Dia. = .0035 groove depth, or three and one half thousandths). But just to make sure I would call them and verify that it is for a .284 bullet. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore size of 7mm barrel?
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