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Rifles, Reloading, Optics, Equipment
Reloading
Stumped .......
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<blockquote data-quote="Gene" data-source="post: 1077639" data-attributes="member: 7402"><p>Take a caliper OAL tool reading from the same bullet 5 times and average them. That figure will get you close. Next, seat that bullet in a sized, empty unprimed case to the average figure you found in the first 5 measurements. Again use the caliper. Write it down. </p><p></p><p>Now neck size the case again and seat same bullet to the average figure. Once seated tight in the case mouth, rub it with 0000 steel wool. Put this dummy round in chamber; remove it carefully, and look closely at the bullet and find marks where the lands scraped it. (View it with a jewelers loop or magnifier.) If no such marks found, you need to seat the bullet out a little further and try again. If the marks are heavy, turn your seater die down slightly.</p><p></p><p>Countinue doing this until you can barely see the land rub marks. This will be your touch point where the bullet is just kissed lightly. Write it down. Using that number you will be able to jump or jam those same bullets and find the most accurate seating depth.</p></blockquote><p></p>
[QUOTE="Gene, post: 1077639, member: 7402"] Take a caliper OAL tool reading from the same bullet 5 times and average them. That figure will get you close. Next, seat that bullet in a sized, empty unprimed case to the average figure you found in the first 5 measurements. Again use the caliper. Write it down. Now neck size the case again and seat same bullet to the average figure. Once seated tight in the case mouth, rub it with 0000 steel wool. Put this dummy round in chamber; remove it carefully, and look closely at the bullet and find marks where the lands scraped it. (View it with a jewelers loop or magnifier.) If no such marks found, you need to seat the bullet out a little further and try again. If the marks are heavy, turn your seater die down slightly. Countinue doing this until you can barely see the land rub marks. This will be your touch point where the bullet is just kissed lightly. Write it down. Using that number you will be able to jump or jam those same bullets and find the most accurate seating depth. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Stumped .......
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