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Rifles, Reloading, Optics, Equipment
Reloading
Every bullet has different Ogive???
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<blockquote data-quote="DocB" data-source="post: 1068651" data-attributes="member: 55312"><p>That's correct. The lands are normally .300 (hence .30 caliber) which is where the ogive makes contact; and the grooves are .308 caliber, which is the barrel full diameter. Your comparator will size the ogive at .300. By fitting your rifle differently, I'm thinking you mean 'further down' the bullet from the tip, or more correctly said, the ogive is further down the secant from the tip. This would be reflected in different seating depths and COAL for the same caliber bullet but in a different configuration, i.e. a VLD or Hybrid .30 cal bullet versus a .30 cal Scenar or Match King, or for the same style bullet in a different weight. A bullet in the same caliber that is heavier is 'longer' by necessity. In most cases this normally relates to a higher BC and a more stable (increased sectional density) but slower bullet at longer ranges.</p><p></p><p>You're on the right track sir, keep at it and soon all of this reloading 'magic mumbo-jumbo' will all fall into place.</p><p></p><p>Have fun!</p><p></p><p>DocB</p></blockquote><p></p>
[QUOTE="DocB, post: 1068651, member: 55312"] That's correct. The lands are normally .300 (hence .30 caliber) which is where the ogive makes contact; and the grooves are .308 caliber, which is the barrel full diameter. Your comparator will size the ogive at .300. By fitting your rifle differently, I'm thinking you mean 'further down' the bullet from the tip, or more correctly said, the ogive is further down the secant from the tip. This would be reflected in different seating depths and COAL for the same caliber bullet but in a different configuration, i.e. a VLD or Hybrid .30 cal bullet versus a .30 cal Scenar or Match King, or for the same style bullet in a different weight. A bullet in the same caliber that is heavier is 'longer' by necessity. In most cases this normally relates to a higher BC and a more stable (increased sectional density) but slower bullet at longer ranges. You're on the right track sir, keep at it and soon all of this reloading 'magic mumbo-jumbo' will all fall into place. Have fun! DocB [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Every bullet has different Ogive???
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