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Rifles, Reloading, Optics, Equipment
Reloading
Measuring to the lands
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<blockquote data-quote="dok7mm" data-source="post: 1122038" data-attributes="member: 90080"><p>Welcome to sorting trays. First, when sorting base to ogive ( I am assuming that's what you're doing) with calipers and one comparator, it is difficult to get everything in line in a consistant manner. I used to try this method and it is frustrating. I went to a sorting stand w/ digital indicator, so you can zero it. This way you will be able to get very consistant measurements with one comparator and a flat tip on your indicator for base to ogive length. For bearing surface length, simply add another comparator that fits the stem on your indicator dial. Even with Bergers and Amax, I usually end up w/ 3-4 trays, so I bag 'em and tag 'em and shoot from one lot to the next. I use David Tubb's comparators w/ Larry Willis stand & Sinclair has a good set-up. It's much faster and certainly more accurate, but you still have to develop consistent methods of seating each bullet. In the meantime, you could seat a bullet in your present comparator---boattail first--- and make a mark on caliper blade where meplat touches blade. This gives you a reference point to center boattail on when taking measurements. Pressure of your thumb should be firm, but consistent. I sort by .001" and usually I can only get this with a stand type set-up. Hope this helps.</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1122038, member: 90080"] Welcome to sorting trays. First, when sorting base to ogive ( I am assuming that's what you're doing) with calipers and one comparator, it is difficult to get everything in line in a consistant manner. I used to try this method and it is frustrating. I went to a sorting stand w/ digital indicator, so you can zero it. This way you will be able to get very consistant measurements with one comparator and a flat tip on your indicator for base to ogive length. For bearing surface length, simply add another comparator that fits the stem on your indicator dial. Even with Bergers and Amax, I usually end up w/ 3-4 trays, so I bag 'em and tag 'em and shoot from one lot to the next. I use David Tubb's comparators w/ Larry Willis stand & Sinclair has a good set-up. It's much faster and certainly more accurate, but you still have to develop consistent methods of seating each bullet. In the meantime, you could seat a bullet in your present comparator---boattail first--- and make a mark on caliper blade where meplat touches blade. This gives you a reference point to center boattail on when taking measurements. Pressure of your thumb should be firm, but consistent. I sort by .001" and usually I can only get this with a stand type set-up. Hope this helps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Measuring to the lands
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