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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My 6.5 Sherman rifle and load development thread
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<blockquote data-quote="tim_w" data-source="post: 1465589" data-attributes="member: 11132"><p>Ramrod79,</p><p></p><p></p><p>On that second group what do you think the cause of the vertical dispersion was? If you ran a chrony were the velocities ES/SD high?</p><p></p><p>They are both great groups @ 1/3 moa but they have a very different dispersion. It may just be they are 3 rd groups. But grp 1 has what 1/2-1/3" vertical where group two has close to 2".</p><p></p><p>I have had weird winds and barrel whip do things like that where the movement is more than can be accounted for by vel spread hence my ????? </p><p></p><p>No matter that is a good load and great shooting. </p><p></p><p>I will be noting that load. </p><p>What is your barrel length?</p><p>OAL to ogive?</p><p>Jump?</p></blockquote><p></p>
[QUOTE="tim_w, post: 1465589, member: 11132"] Ramrod79, On that second group what do you think the cause of the vertical dispersion was? If you ran a chrony were the velocities ES/SD high? They are both great groups @ 1/3 moa but they have a very different dispersion. It may just be they are 3 rd groups. But grp 1 has what 1/2-1/3" vertical where group two has close to 2". I have had weird winds and barrel whip do things like that where the movement is more than can be accounted for by vel spread hence my ????? No matter that is a good load and great shooting. I will be noting that load. What is your barrel length? OAL to ogive? Jump? [/QUOTE]
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My 6.5 Sherman rifle and load development thread
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