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Rifles, Reloading, Optics, Equipment
Reloading
Finding "sweet spot" with bullet seating adjustment
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<blockquote data-quote="Mike 338" data-source="post: 1686992" data-attributes="member: 41338"><p>So now that I did a rough seating depth test and determined my gun likes a goodly jump, I decided to work up a powder charge with .100" jump, which was between my 90 thousandths and 130 thousandths test previously. I've found that generally, small incremental adjustments make little or no difference when your in the right depth ballpark so I picked a depth sort'a in between a couple of test groups that I thought might be promising. These groups were pretty lackluster till I started pushing things harder, which is a happy surprise. It started coming in on group #8. Wish I had loaded a bit higher but I'm not nuts for magnum speeds from a non-magnum cartridge. 4 shot groups really don't tell the tale so I'll re-test but it looks promising. The Berger method of determining preferred bullet seating depth has it's merits and may be worth a try is other ways aren't working for you.</p><p></p><p>I'll now re-test this load and maybe a couple other close powder charges. If I like the groups, I'll run the best group over a chronograph. If I think there may be some improvement to be had, I'll test some primers for both Extreme Spread and Accuracy.</p></blockquote><p></p>
[QUOTE="Mike 338, post: 1686992, member: 41338"] So now that I did a rough seating depth test and determined my gun likes a goodly jump, I decided to work up a powder charge with .100" jump, which was between my 90 thousandths and 130 thousandths test previously. I've found that generally, small incremental adjustments make little or no difference when your in the right depth ballpark so I picked a depth sort'a in between a couple of test groups that I thought might be promising. These groups were pretty lackluster till I started pushing things harder, which is a happy surprise. It started coming in on group #8. Wish I had loaded a bit higher but I'm not nuts for magnum speeds from a non-magnum cartridge. 4 shot groups really don't tell the tale so I'll re-test but it looks promising. The Berger method of determining preferred bullet seating depth has it's merits and may be worth a try is other ways aren't working for you. I'll now re-test this load and maybe a couple other close powder charges. If I like the groups, I'll run the best group over a chronograph. If I think there may be some improvement to be had, I'll test some primers for both Extreme Spread and Accuracy. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Finding "sweet spot" with bullet seating adjustment
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