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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Weight vs. Bearing Surface
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<blockquote data-quote="Gene" data-source="post: 450386" data-attributes="member: 7402"><p>I use mostly Bergers and have found that the slight differences in bullet weight are not enough to be of concern, so I no longer weight them. Bearing surface is another matter. It affects the time the bullet is in the barrel, and is more critical. I separate those bullets and keep any with a .003" and less variance in BS. The others are my sighters, practice bullets, etc.</p><p></p><p>I shoot 500 meter (approx. 550 yds) groundhog matches. I trim meplats for 6mm, 6.5mm and 30 cal. bullets. I have not seen any great difference at extreme ranges, but it may be an advantage to do so at longer distances. The meplats need just a slight touch to uniform them, reducing the length about a thou or two. But then, it is important to open the point slightly with a tiny inside reamer. Meplat pointing will cause a small reduction in BC. It is not necessary to trim meplats so that all will finish with exact uniform total bullet lengths. </p><p></p><p>The newest fad is bullet pointing, which I have not tried. Seems like every month or so a new "super gadget" comes along, and I am getting weary of being the sucker for all of them.</p></blockquote><p></p>
[QUOTE="Gene, post: 450386, member: 7402"] I use mostly Bergers and have found that the slight differences in bullet weight are not enough to be of concern, so I no longer weight them. Bearing surface is another matter. It affects the time the bullet is in the barrel, and is more critical. I separate those bullets and keep any with a .003" and less variance in BS. The others are my sighters, practice bullets, etc. I shoot 500 meter (approx. 550 yds) groundhog matches. I trim meplats for 6mm, 6.5mm and 30 cal. bullets. I have not seen any great difference at extreme ranges, but it may be an advantage to do so at longer distances. The meplats need just a slight touch to uniform them, reducing the length about a thou or two. But then, it is important to open the point slightly with a tiny inside reamer. Meplat pointing will cause a small reduction in BC. It is not necessary to trim meplats so that all will finish with exact uniform total bullet lengths. The newest fad is bullet pointing, which I have not tried. Seems like every month or so a new "super gadget" comes along, and I am getting weary of being the sucker for all of them. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Weight vs. Bearing Surface
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