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Rifles, Reloading, Optics, Equipment
Reloading
Measuring base of case to bullet ogive
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<blockquote data-quote="wyman08" data-source="post: 818196" data-attributes="member: 69122"><p><span style="color: black"><span style="font-family: 'Verdana'">If the insert on the tool used to measure the distance from the bolt face to the lands is undersized resulting in varying lengths from one bullet to the next, how can you adjust your bullet off the lands to minimal clearances? It seems your defeated before you begin if the insert is undersize.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">I've used a re-sized unprimed empty case with a bullet seated well in excess of the AOL. I carefully chamber this round and slowly close the breach seating the bullet against the lands in the process. When extracted and measured it gives me the full distance from the bolt face to the tip of the bullet with the ogive against the lands that particular bullet. I seat the bullets well short of this maximum length and slowly work it out while watching my grouping and indications of excessive pressures.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"><span style="color: black"><span style="font-family: 'Verdana'">As this is actually using the ogive of the bullet I would think it would be more accurate than measurements taken with an undersized insert that would more likely provide measurements in excess of the actual dimension from the bolt face to that portion of the lands that contact the bullets ogive.</span></span></span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'"></span></span></p></blockquote><p></p>
[QUOTE="wyman08, post: 818196, member: 69122"] [COLOR=black][FONT=Verdana]If the insert on the tool used to measure the distance from the bolt face to the lands is undersized resulting in varying lengths from one bullet to the next, how can you adjust your bullet off the lands to minimal clearances? It seems your defeated before you begin if the insert is undersize.[/FONT][/COLOR] [COLOR=black][FONT=Verdana]I've used a re-sized unprimed empty case with a bullet seated well in excess of the AOL. I carefully chamber this round and slowly close the breach seating the bullet against the lands in the process. When extracted and measured it gives me the full distance from the bolt face to the tip of the bullet with the ogive against the lands that particular bullet. I seat the bullets well short of this maximum length and slowly work it out while watching my grouping and indications of excessive pressures.[/FONT][/COLOR] [COLOR=black][FONT=Verdana][COLOR=black][FONT=Verdana]As this is actually using the ogive of the bullet I would think it would be more accurate than measurements taken with an undersized insert that would more likely provide measurements in excess of the actual dimension from the bolt face to that portion of the lands that contact the bullets ogive.[/FONT][/COLOR] [/FONT][/COLOR] [/QUOTE]
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Measuring base of case to bullet ogive
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