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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma Mag Improved. Follow along!!!
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<blockquote data-quote="codyadams" data-source="post: 2569106" data-attributes="member: 87243"><p>In my seating depth tests, which is one of the first things I do after finding my max pressure, I load what I know will be safe pressure, then I usually start at .005" off, and jump .015" at a time out to .110" off, which is 8 groups, 2 or 3 shots, so 16-24 rounds. This almost always yields obvious results, or at least a range it likes to be in. Then I fine tune my powder charge with a ladder test, then I fine tune seating if needed. With a good gun, I usually have a .5 MOA or less load in 50 rounds or less with this method. Sometimes things change though, if I have to switch primers due to not getting consistent velocities or something, that number can quickly go up!</p></blockquote><p></p>
[QUOTE="codyadams, post: 2569106, member: 87243"] In my seating depth tests, which is one of the first things I do after finding my max pressure, I load what I know will be safe pressure, then I usually start at .005" off, and jump .015" at a time out to .110" off, which is 8 groups, 2 or 3 shots, so 16-24 rounds. This almost always yields obvious results, or at least a range it likes to be in. Then I fine tune my powder charge with a ladder test, then I fine tune seating if needed. With a good gun, I usually have a .5 MOA or less load in 50 rounds or less with this method. Sometimes things change though, if I have to switch primers due to not getting consistent velocities or something, that number can quickly go up! [/QUOTE]
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300 Norma Mag Improved. Follow along!!!
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