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Weight vs cold shot
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<blockquote data-quote="justgoto" data-source="post: 622783" data-attributes="member: 17125"><p>I can usually tell in my ladder test target if it is going to cold-bore group well by a slower round, (perceived slower as in the target below,) grouping with or slightly above the node.</p><p></p><p><img src="http://img.photobucket.com/albums/v39/justgoto/gun/EddystoneLadderTest.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p>I don't tweek the seating depth like many of you do, .3moa is is perfectly fine with me. I only have a 700 yard range so .3moa is wonderful. Although I do have loads that shoot much smaller.</p><p></p><p></p><p></p><p>Here is my test target for that load above.</p><p></p><p><img src="http://img.photobucket.com/albums/v39/justgoto/gun/125moa.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Unfortunately, that load is no good since it doesn't jibe with my sight graduations beyond 300 yards.</p><p></p><p>Sometimes I just get lucky like here.</p><p><img src="http://img.photobucket.com/albums/v39/justgoto/gun/audetteHalfMOA.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Here is that load fouled bore.</p><p>[ame=http://www.youtube.com/watch?v=RyEwORxRaXo]Howa 1500 in 30-06 at 400 Yards - YouTube[/ame]</p><p></p><p>The next day, cold-bore.</p><p>[ame=http://www.youtube.com/watch?v=275t8chmGRk]Cold-Bore, High Wind, 400 Yards, 2 - YouTube[/ame]</p><p></p><p>That is about 1/2 an inch difference at 400 yards; and that is just getting lucky with the load. If the cold bore deviation showed-up, I'd have continued with the ladder test until I found another node. I could have gone a lot heavier with the charge weight.</p></blockquote><p></p>
[QUOTE="justgoto, post: 622783, member: 17125"] I can usually tell in my ladder test target if it is going to cold-bore group well by a slower round, (perceived slower as in the target below,) grouping with or slightly above the node. [IMG]http://img.photobucket.com/albums/v39/justgoto/gun/EddystoneLadderTest.jpg[/IMG] I don't tweek the seating depth like many of you do, .3moa is is perfectly fine with me. I only have a 700 yard range so .3moa is wonderful. Although I do have loads that shoot much smaller. Here is my test target for that load above. [IMG]http://img.photobucket.com/albums/v39/justgoto/gun/125moa.jpg[/IMG] Unfortunately, that load is no good since it doesn't jibe with my sight graduations beyond 300 yards. Sometimes I just get lucky like here. [IMG]http://img.photobucket.com/albums/v39/justgoto/gun/audetteHalfMOA.jpg[/IMG] Here is that load fouled bore. [ame=http://www.youtube.com/watch?v=RyEwORxRaXo]Howa 1500 in 30-06 at 400 Yards - YouTube[/ame] The next day, cold-bore. [ame=http://www.youtube.com/watch?v=275t8chmGRk]Cold-Bore, High Wind, 400 Yards, 2 - YouTube[/ame] That is about 1/2 an inch difference at 400 yards; and that is just getting lucky with the load. If the cold bore deviation showed-up, I'd have continued with the ladder test until I found another node. I could have gone a lot heavier with the charge weight. [/QUOTE]
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