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Rifles, Reloading, Optics, Equipment
Reloading
Help! Extreme spread and standard deviation loads
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<blockquote data-quote="bowhunthard88" data-source="post: 1107654" data-attributes="member: 12575"><p>Ok all, this is an old post, and I've come a loooong way since then...</p><p></p><p>First of all, NOT 1/2 MOA, but legitimate 1/2-1" groups between 3-350 yds. I have legitimate witnessed proof, of 800 yd. groups in the 3-4" range now also... But this post is not to brag or really even worry solely about group size. And groups like this do NOT happen every day, but are certainly possible from time to time.</p><p></p><p>Now I believe that brass prep is certainly important (i.e. length, I weigh and measure internal volume, anneal, prep pockets, neck size, etc. now). All that being said, this is all a lot of work for minimal difference... Powder and bullet combination was fine (I did tweak the OAL), BUT I did switch to Fed GMM Lg primers and noticed an EXTREME difference. Now almost all of my .308 loads are in the mid single digits. Out of all 3 of them: cheap, factory modified, and a custom rifle.</p><p></p><p>All in all, I'm very satisfied now, and I have a much great understanding of how/what/etc, but the more that I understand and become involved in this whole procedure, the more I realize how much more that I have to understand and learn. IT'S AWESOME!!!</p><p></p><p>Thank you all for your help!!!</p></blockquote><p></p>
[QUOTE="bowhunthard88, post: 1107654, member: 12575"] Ok all, this is an old post, and I've come a loooong way since then... First of all, NOT 1/2 MOA, but legitimate 1/2-1" groups between 3-350 yds. I have legitimate witnessed proof, of 800 yd. groups in the 3-4" range now also... But this post is not to brag or really even worry solely about group size. And groups like this do NOT happen every day, but are certainly possible from time to time. Now I believe that brass prep is certainly important (i.e. length, I weigh and measure internal volume, anneal, prep pockets, neck size, etc. now). All that being said, this is all a lot of work for minimal difference... Powder and bullet combination was fine (I did tweak the OAL), BUT I did switch to Fed GMM Lg primers and noticed an EXTREME difference. Now almost all of my .308 loads are in the mid single digits. Out of all 3 of them: cheap, factory modified, and a custom rifle. All in all, I'm very satisfied now, and I have a much great understanding of how/what/etc, but the more that I understand and become involved in this whole procedure, the more I realize how much more that I have to understand and learn. IT'S AWESOME!!! Thank you all for your help!!! [/QUOTE]
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Help! Extreme spread and standard deviation loads
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