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Rifles, Reloading, Optics, Equipment
Reloading
Bullet Depth, "off the lands" vrs OAL?
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<blockquote data-quote="RT2506" data-source="post: 533982" data-attributes="member: 10178"><p>Hornady makes the tool that measures from the Ogive of the bullet to the base of the case. The Ogive is the place on the bullet where it will contact the lands first. The tool is called Hornady Lock-N-Load Bullet Comparator at (Midway midwayusa.com it is product number 709-931). It attaches to a dial calipers. To help you find the measurement of where your particular bullet is hitting the lands in your rifle take a case and full length size it. Then take a cutting tool like a hack saw etc. and cut one side of the neck on the case down to the start of the shoulder. Clean up the burrs. Before every use run it into your size die or just pinch the neck tighter with your fingers. The cut in the side of the neck will allow the neck to flex and allow a bullet to be placed by hand into it and allow you to pull it out after use. As you did before just start the bullet into the case and place in the chamber and close the bolt. Ease the bolt open and carefully remove the case. Carefully measure using the comparator. This is your to the lands measurement to the Ogive of the bullet. Now you can seat deeper etc. and know were your are all the time. If you just measure from the bullet tips as an over all length you will never know exactly how far off the lands you really are. Bullet tips are often NOT the same length but from the base of the bullet to the Ogive it is always the same if the bullets were made on the same machine.</p></blockquote><p></p>
[QUOTE="RT2506, post: 533982, member: 10178"] Hornady makes the tool that measures from the Ogive of the bullet to the base of the case. The Ogive is the place on the bullet where it will contact the lands first. The tool is called Hornady Lock-N-Load Bullet Comparator at (Midway midwayusa.com it is product number 709-931). It attaches to a dial calipers. To help you find the measurement of where your particular bullet is hitting the lands in your rifle take a case and full length size it. Then take a cutting tool like a hack saw etc. and cut one side of the neck on the case down to the start of the shoulder. Clean up the burrs. Before every use run it into your size die or just pinch the neck tighter with your fingers. The cut in the side of the neck will allow the neck to flex and allow a bullet to be placed by hand into it and allow you to pull it out after use. As you did before just start the bullet into the case and place in the chamber and close the bolt. Ease the bolt open and carefully remove the case. Carefully measure using the comparator. This is your to the lands measurement to the Ogive of the bullet. Now you can seat deeper etc. and know were your are all the time. If you just measure from the bullet tips as an over all length you will never know exactly how far off the lands you really are. Bullet tips are often NOT the same length but from the base of the bullet to the Ogive it is always the same if the bullets were made on the same machine. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bullet Depth, "off the lands" vrs OAL?
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