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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a half of grain of powder make that much difference?
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<blockquote data-quote="HARPERC" data-source="post: 863212" data-attributes="member: 30671"><p>I'm going with be patient it's early. I'd be encouraged that the groups overlap pretty well. If you put the 9 shots together they almost fit in the worst group. If anything clean it after each group and see what happens. How are you cleaning it?</p><p></p><p>My Krieger 338 RUM prefers clean, my My Douglas .375 H&H is the least fickle I ever had . I have a 6mm Remington, Shilen barrel, that shot patterns until we were between 150-200 rounds. Then tightened up from then on. I also started more aggressive cleaning with JB, I suspect I hand lapped it myself. You aren't there yet.</p><p></p><p>Their all different, but 0.5 grain powder isn't likely the issue. If all your groups were 1.75"</p><p>another bullet or change in seating would do more.</p></blockquote><p></p>
[QUOTE="HARPERC, post: 863212, member: 30671"] I'm going with be patient it's early. I'd be encouraged that the groups overlap pretty well. If you put the 9 shots together they almost fit in the worst group. If anything clean it after each group and see what happens. How are you cleaning it? My Krieger 338 RUM prefers clean, my My Douglas .375 H&H is the least fickle I ever had . I have a 6mm Remington, Shilen barrel, that shot patterns until we were between 150-200 rounds. Then tightened up from then on. I also started more aggressive cleaning with JB, I suspect I hand lapped it myself. You aren't there yet. Their all different, but 0.5 grain powder isn't likely the issue. If all your groups were 1.75" another bullet or change in seating would do more. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a half of grain of powder make that much difference?
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