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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
velocity spreed
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<blockquote data-quote="retiredcpo" data-source="post: 473891" data-attributes="member: 18966"><p>Rock </p><p>have several loads we are working on the one I have been refering to </p><p>is a 7mm remington mag 160 gr Accubond with 60 grs of 4831sc win brass and primers OAL is 3.375 which is way off the lands now9it will be time for a new barrel next year probably.</p><p>I know this is a good load and a safe one I have been shooting it for over a year now even when it was hot outside pushing 100 degrees.</p><p>I ask the question for two reasons </p><p>1-to try to understand what the chrono data is telling me and how to use it to better my loads</p><p>2- to try to learn what I can do to try to better things with out changing to much</p><p>I may try some lighter loads just to see what happens</p><p>Differant guns are extremly differant</p><p>My 223 load has a SD of 55 FPS Im helping a buddy work up a load for a new gun the same load in his gun has a SD of 8.0 FPS the only diffeance is his is 0.010 shorter. Thats a huge differance for just changing guns</p><p>retirecpo</p></blockquote><p></p>
[QUOTE="retiredcpo, post: 473891, member: 18966"] Rock have several loads we are working on the one I have been refering to is a 7mm remington mag 160 gr Accubond with 60 grs of 4831sc win brass and primers OAL is 3.375 which is way off the lands now9it will be time for a new barrel next year probably. I know this is a good load and a safe one I have been shooting it for over a year now even when it was hot outside pushing 100 degrees. I ask the question for two reasons 1-to try to understand what the chrono data is telling me and how to use it to better my loads 2- to try to learn what I can do to try to better things with out changing to much I may try some lighter loads just to see what happens Differant guns are extremly differant My 223 load has a SD of 55 FPS Im helping a buddy work up a load for a new gun the same load in his gun has a SD of 8.0 FPS the only diffeance is his is 0.010 shorter. Thats a huge differance for just changing guns retirecpo [/QUOTE]
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