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Rifles, Reloading, Optics, Equipment
Reloading
Load development made easy.
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<blockquote data-quote="Michael Eichele" data-source="post: 299955" data-attributes="member: 1007"><p>20 FPS with this load would "theoretically" be 4-5" high or low for a 20 FPS extreme spread. Good harmonics also come into play here. While at 1K harmonics cant completely make up for the extreme spread, they do help quite a bit. It is common still to see 1/2 to 1 MOA groups at 1K even with more than 20 FPS spreads IF the harmonics are right. 20-25 FPS really is managable. Single digit ES's are nice but not always attained. One year I was working with Federal GMM ammo and found the ES to be nearly 60 FPS yet the ammo held 1 MOA out to 1K and much better at 700 and 800. The "theoretic" horizontal component was more than the groups were large. Then again, Federal GMM is a known "sweet spot" for the 308.</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 299955, member: 1007"] 20 FPS with this load would "theoretically" be 4-5" high or low for a 20 FPS extreme spread. Good harmonics also come into play here. While at 1K harmonics cant completely make up for the extreme spread, they do help quite a bit. It is common still to see 1/2 to 1 MOA groups at 1K even with more than 20 FPS spreads IF the harmonics are right. 20-25 FPS really is managable. Single digit ES's are nice but not always attained. One year I was working with Federal GMM ammo and found the ES to be nearly 60 FPS yet the ammo held 1 MOA out to 1K and much better at 700 and 800. The "theoretic" horizontal component was more than the groups were large. Then again, Federal GMM is a known "sweet spot" for the 308. [/QUOTE]
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Reloading
Load development made easy.
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