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Rifles, Reloading, Optics, Equipment
Reloading
Finding Max OAL for specific bullets
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<blockquote data-quote="el matador" data-source="post: 859022" data-attributes="member: 12193"><p>The method you describe should work just fine. Seems like a lot of work, but reloading is just that! I use the RCBS Precision Mic for measuring jump to the lands. It has a dummy cartridge that you chamber and the dummy bullet is pushed back as it contacts the lands. You then remove the cartridge and place it in a device that measures from the cartridge base to the point on the ogive where it hits the lands (it does not measure from the bullet tip). You then make a note of the measurement and seat your bullets down until they give the same reading on the device. It's simple, quick and you can double check whenever you feel like it. The kit also comes with a tool for measuring case length from base to shoulder, which is very useful when body sizing or full length sizing to get just the right amount of shoulder bump.</p><p></p><p>There is no magic number for how far off the lands to seat. Anywhere from .120 off to .010 into the lands may work. Just be aware that pressure could go up significantly as you get really close to the lands, so definitely use starting loads and work up. Try a few maybe .010 off, .050 off, and .090 off and see how they perform.</p></blockquote><p></p>
[QUOTE="el matador, post: 859022, member: 12193"] The method you describe should work just fine. Seems like a lot of work, but reloading is just that! I use the RCBS Precision Mic for measuring jump to the lands. It has a dummy cartridge that you chamber and the dummy bullet is pushed back as it contacts the lands. You then remove the cartridge and place it in a device that measures from the cartridge base to the point on the ogive where it hits the lands (it does not measure from the bullet tip). You then make a note of the measurement and seat your bullets down until they give the same reading on the device. It's simple, quick and you can double check whenever you feel like it. The kit also comes with a tool for measuring case length from base to shoulder, which is very useful when body sizing or full length sizing to get just the right amount of shoulder bump. There is no magic number for how far off the lands to seat. Anywhere from .120 off to .010 into the lands may work. Just be aware that pressure could go up significantly as you get really close to the lands, so definitely use starting loads and work up. Try a few maybe .010 off, .050 off, and .090 off and see how they perform. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Finding Max OAL for specific bullets
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