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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Which 260 Remington reamer
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<blockquote data-quote="Canadian Bushman" data-source="post: 1964727" data-attributes="member: 41122"><p>My opinion on lead angle is that it only really correlates with the bullet being used.</p><p></p><p>Dan Lilja ran a number of test on this topic which i believe are still posted on his site.</p><p></p><p>[URL unfurl="true"]https://riflebarrels.com/a-look-at-bullet-ogives-and-chamber-throat-angles/[/URL]</p><p></p><p>His idea was to see if there were accuracy improvements in matching lead angles to the angle of tangency on the ogive of a given bullet.</p><p></p><p>I believe in recent years, the shallower angles are preferred for less of a pressure spike from lower engraving force and more potential for higher MV's. 1.5 deg is very common these days on most reamers.</p><p></p><p>Dont quote me but I think Roy Weatherby was one of the pioneers of this, of course coupled with large amounts of free bore and slow twist. He knew early on that speed sells.</p></blockquote><p></p>
[QUOTE="Canadian Bushman, post: 1964727, member: 41122"] My opinion on lead angle is that it only really correlates with the bullet being used. Dan Lilja ran a number of test on this topic which i believe are still posted on his site. [URL unfurl="true"]https://riflebarrels.com/a-look-at-bullet-ogives-and-chamber-throat-angles/[/URL] His idea was to see if there were accuracy improvements in matching lead angles to the angle of tangency on the ogive of a given bullet. I believe in recent years, the shallower angles are preferred for less of a pressure spike from lower engraving force and more potential for higher MV’s. 1.5 deg is very common these days on most reamers. Dont quote me but I think Roy Weatherby was one of the pioneers of this, of course coupled with large amounts of free bore and slow twist. He knew early on that speed sells. [/QUOTE]
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Which 260 Remington reamer
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