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Rifles, Reloading, Optics, Equipment
Reloading
Measuring base of case to bullet ogive
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<blockquote data-quote="rscott5028" data-source="post: 514411" data-attributes="member: 24624"><p>Try an exaggerated picture on paper. </p><p> </p><p>Draw 2 parallel lines for the bearing surface of your bullet with the distance between them representing the caliber. </p><p> </p><p>Bullet #1:</p><p>Now, draw 2 straight lines from the end of your bearing surface to a point (meplat) not too far ahead of where the bearing surface stops. </p><p> </p><p>Bullet #2: </p><p>Draw a second pair of lines from the end of the bearing surface to a point much farther out than the first pair. </p><p> </p><p>If the grooves are caliber diameter apart and the lands are smaller diameter apart, will Bullet #1 and Bullet #2 touch at the same time? Or, will the 2nd ogive contact the lands first? </p><p> </p><p>Now, measure the diameter of one of your HNL OAL gage inserts. I just picked up the 25 cal and it measures .245" rather than .257". </p><p> </p><p>Hope this helps,</p><p>Richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 514411, member: 24624"] Try an exaggerated picture on paper. Draw 2 parallel lines for the bearing surface of your bullet with the distance between them representing the caliber. Bullet #1: Now, draw 2 straight lines from the end of your bearing surface to a point (meplat) not too far ahead of where the bearing surface stops. Bullet #2: Draw a second pair of lines from the end of the bearing surface to a point much farther out than the first pair. If the grooves are caliber diameter apart and the lands are smaller diameter apart, will Bullet #1 and Bullet #2 touch at the same time? Or, will the 2nd ogive contact the lands first? Now, measure the diameter of one of your HNL OAL gage inserts. I just picked up the 25 cal and it measures .245" rather than .257". Hope this helps, Richard [/QUOTE]
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Reloading
Measuring base of case to bullet ogive
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