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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How do I get my extreme deviation or spread DOWN?
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<blockquote data-quote="Greyfox" data-source="post: 840907" data-attributes="member: 10291"><p>It really depends on what your range requirement and target size is. For example my 6.5x284 at 1000 yards, 2964FOS with a Berger 140VLD with an ES of 20FPS will calculate to about 4" vertical variability induced by this ES. At an ES of 10FPS it's 2". This can be calculated using a ballistic calculator by plugging in the velocity spread. While I generally try to get my ES around 10FPS for long range work for medium size game out to 1000 yards, 10-20 FPS will do. My current 6.5x284 load has an ES of 11FPS. The best ES out of my hunting rifles is 8FPS with my 300WM.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 840907, member: 10291"] It really depends on what your range requirement and target size is. For example my 6.5x284 at 1000 yards, 2964FOS with a Berger 140VLD with an ES of 20FPS will calculate to about 4" vertical variability induced by this ES. At an ES of 10FPS it's 2". This can be calculated using a ballistic calculator by plugging in the velocity spread. While I generally try to get my ES around 10FPS for long range work for medium size game out to 1000 yards, 10-20 FPS will do. My current 6.5x284 load has an ES of 11FPS. The best ES out of my hunting rifles is 8FPS with my 300WM. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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How do I get my extreme deviation or spread DOWN?
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