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Rifles, Reloading, Optics, Equipment
Reloading
Key to low ES on reloading
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<blockquote data-quote="bruce_ventura" data-source="post: 1091291" data-attributes="member: 34084"><p>I agree^. I've long suspected, but have not proven it, that some of the MV ES we usually see is actually due to bullet mass variation. If so, a lower mass bullet will have a faster MV but also a lower BC. The two effects may cancel each other out to a large extent, resulting a tighter dispersion at long range than one would expect from MV variation alone. </p><p></p><p>It might be a good idea to track your bullet mass. If mass varies more than +/-0.3 gr, then it might be a noticeable effect, even if it's small. Otherwise, I think it's negligible. </p><p></p><p>People have probably proven or disproven this hypothesis already, but I can't recall seeing anything recently about it.</p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 1091291, member: 34084"] I agree^. I've long suspected, but have not proven it, that some of the MV ES we usually see is actually due to bullet mass variation. If so, a lower mass bullet will have a faster MV but also a lower BC. The two effects may cancel each other out to a large extent, resulting a tighter dispersion at long range than one would expect from MV variation alone. It might be a good idea to track your bullet mass. If mass varies more than +/-0.3 gr, then it might be a noticeable effect, even if it's small. Otherwise, I think it's negligible. People have probably proven or disproven this hypothesis already, but I can't recall seeing anything recently about it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Key to low ES on reloading
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