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Rifles, Reloading, Optics, Equipment
Reloading
Load Density, Bullet Jump, Case Air Space
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<blockquote data-quote="MagnumManiac" data-source="post: 2261719" data-attributes="member: 10755"><p>To add to what Mikecr just said, full seating testing is not just seating depth testing per se, it is also how much of the neck is sized, as this also affects seating depth testing and bullet release.</p><p>I discovered this recently again when I sized down 7RM to 264WM. I sized the necks just enough so they would chamber with a little pressure on bolt close for a better fit. When bullet seating, the heel of a Nosler 140g Accubond is below the neck/shoulder juncture and into the pressure ring normally. There was no pressure ring present and these loads were printing into a ragged hole….could I get the same result after firing and bringing the necks back 90%….not a chance, that slight increase in diameter at the neck juncture was the only difference in those parameters. The .004" difference in neck juncture diameter wasn't enough to keep them in one hole.</p><p>I am going back to this, as I haven't fireformed all the brass yet, still testing primers and I have to say, this batch of Remington brass is very good in volume as is my latest batch of 300WM and 7STW which I have 100 in each, and the now 264WM converted brass.</p><p>I am pleased with it.</p><p>Just gotta get out there after this last lockdown.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2261719, member: 10755"] To add to what Mikecr just said, full seating testing is not just seating depth testing per se, it is also how much of the neck is sized, as this also affects seating depth testing and bullet release. I discovered this recently again when I sized down 7RM to 264WM. I sized the necks just enough so they would chamber with a little pressure on bolt close for a better fit. When bullet seating, the heel of a Nosler 140g Accubond is below the neck/shoulder juncture and into the pressure ring normally. There was no pressure ring present and these loads were printing into a ragged hole….could I get the same result after firing and bringing the necks back 90%….not a chance, that slight increase in diameter at the neck juncture was the only difference in those parameters. The .004” difference in neck juncture diameter wasn’t enough to keep them in one hole. I am going back to this, as I haven’t fireformed all the brass yet, still testing primers and I have to say, this batch of Remington brass is very good in volume as is my latest batch of 300WM and 7STW which I have 100 in each, and the now 264WM converted brass. I am pleased with it. Just gotta get out there after this last lockdown. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Load Density, Bullet Jump, Case Air Space
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