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Old June 22, 2005, 12:18 AM   #11
smedley
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Join Date: June 21, 2005
Location: NW washington with property in E. Washington
Posts: 43
Hello123 you might try the "ladder" approach and save some time. This is starting at max load and working down 0.3 per load one round at a time for 20 rounds. Then starting with the lowest chage shoot out at 200 to better yet 300 yards you will get clumps as the "string" goes up. (velocity will make each round climb) As you get to an area that your rifle likes the taste of, vibration and barrel time, the rounds will show a group. That will be a good starting point for powder weight. By doing this you can also watch for signs of "pressure." The next step is like you said seat the bullet back of the lands. If you got a good way to acurately meeasure then you can set up a 20 round test setting of the lands 0.003 at a time and tune in a little more. The concept is to match barrel time and vibration to where the barrel is either pausing on it's "whip" up or down.
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