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Rifles, Reloading, Optics, Equipment
Reloading
Jam or jump - load development
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<blockquote data-quote="Rick Richard" data-source="post: 1578042" data-attributes="member: 75895"><p>From Berger website:</p><p></p><p>Load 24 rounds at the following COAL if you are a target competition shooter who does not worry about jamming a bullet:</p><p>1. .010 into (touching) the lands (jam) 6 rounds</p><p>2. .040 off the lands (jump) 6 rounds</p><p>3. .080 off the lands (jump) 6 rounds</p><p>4. .120 off the lands (jump) 6 rounds</p><p></p><p>Load 24 rounds at the following COAL if you are a hunter (pulling a bullet out of the case with your rifling while in the field can be a hunt ending event which must be avoided) or a competition shooter who worries about pulling a bullet during a match:</p><p>1. .010 off the lands (jump) 6 rounds</p><p>2. .050 off the lands (jump) 6 rounds</p><p>3. .090 off the lands (jump) 6 rounds</p><p>4. .130 off the lands (jump) 6 rounds</p><p></p><p>Shoot 2 (separate) 3 shot groups in fair conditions to see how they group. The remarkable reality of this test is that one of these 4 COALs will outperform the other three by a considerable margin. Once you know which one of these 4 COAL shoots best then you can tweak the COAL +/- .002 or .005. Taking the time to set this test up will pay off when you find that your rifle is capable of shooting the VLD bullets very well (even at 100 yards).</p></blockquote><p></p>
[QUOTE="Rick Richard, post: 1578042, member: 75895"] From Berger website: Load 24 rounds at the following COAL if you are a target competition shooter who does not worry about jamming a bullet: 1. .010 into (touching) the lands (jam) 6 rounds 2. .040 off the lands (jump) 6 rounds 3. .080 off the lands (jump) 6 rounds 4. .120 off the lands (jump) 6 rounds Load 24 rounds at the following COAL if you are a hunter (pulling a bullet out of the case with your rifling while in the field can be a hunt ending event which must be avoided) or a competition shooter who worries about pulling a bullet during a match: 1. .010 off the lands (jump) 6 rounds 2. .050 off the lands (jump) 6 rounds 3. .090 off the lands (jump) 6 rounds 4. .130 off the lands (jump) 6 rounds Shoot 2 (separate) 3 shot groups in fair conditions to see how they group. The remarkable reality of this test is that one of these 4 COALs will outperform the other three by a considerable margin. Once you know which one of these 4 COAL shoots best then you can tweak the COAL +/- .002 or .005. Taking the time to set this test up will pay off when you find that your rifle is capable of shooting the VLD bullets very well (even at 100 yards). [/QUOTE]
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Jam or jump - load development
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