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Rifles, Reloading, Optics, Equipment
Reloading
Need Load Data For Berger 215 Hybrid - 300 Weatherby
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<blockquote data-quote="MagnumManiac" data-source="post: 1384196" data-attributes="member: 10755"><p>I found my 300 Weatherby performed better (accuracy wise) with the bullet seated at close to max mag length (- .010" of max mag length) with secant ogive bullets, which the 215gr Berger is.</p><p>The closer I got to the lands, the worse it grouped.</p><p>My throat is a parallel of .375" (3/8") and measures .30825". </p><p>My other Weatherby chambers have .500" (1/2") parallel of freebore and measure .0025" over bullet diameter, these are 340 & 375 calibre. Accuracy in these 2 are just as good. They both really like Accubonds.</p><p></p><p>My 300WinMag does the same with secant ogive bullets. Regardless of the tapered leade and long throat I built into this chamber. My parallel throat measures .220" after the taper and is .3085" for that distance.</p><p></p><p>Accuracy out of each rifle is sub 3/8 MoA if I do everything right.</p><p></p><p>Secant ogive bullets are less affected by jump distance than VLD type bullets.</p><p>This is why they get such good accuracy even with quite a jump.</p><p>If you follow Bergers directions on testing bullet jump, you should find the sweet spot in few components used.</p><p></p><p>Cheers.</p><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1384196, member: 10755"] I found my 300 Weatherby performed better (accuracy wise) with the bullet seated at close to max mag length (- .010” of max mag length) with secant ogive bullets, which the 215gr Berger is. The closer I got to the lands, the worse it grouped. My throat is a parallel of .375” (3/8”) and measures .30825”. My other Weatherby chambers have .500” (1/2”) parallel of freebore and measure .0025” over bullet diameter, these are 340 & 375 calibre. Accuracy in these 2 are just as good. They both really like Accubonds. My 300WinMag does the same with secant ogive bullets. Regardless of the tapered leade and long throat I built into this chamber. My parallel throat measures .220” after the taper and is .3085” for that distance. Accuracy out of each rifle is sub 3/8 MoA if I do everything right. Secant ogive bullets are less affected by jump distance than VLD type bullets. This is why they get such good accuracy even with quite a jump. If you follow Bergers directions on testing bullet jump, you should find the sweet spot in few components used. Cheers. ;) [/QUOTE]
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Reloading
Need Load Data For Berger 215 Hybrid - 300 Weatherby
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