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Rifles, Reloading, Optics, Equipment
Reloading
Finding Jam - I thought I knew how
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<blockquote data-quote="Les in Wyoming" data-source="post: 2070602" data-attributes="member: 115820"><p>I don't understand why the bullet jam measurement (at the ogive) is different with different cases. My bullet jam measurements are all too different for me to get an idea where to start these Berger bullets. If I want to start with a .010 jump, some will be jammed in the rifling and some way out - depending on the figure I use. They won't be the same. I wonder if I should do the same test with several new unfired cases to see if I get the same measurement? If so, that means that case length somehow affects CBTO - which doesn't make sense to me.</p></blockquote><p></p>
[QUOTE="Les in Wyoming, post: 2070602, member: 115820"] I don't understand why the bullet jam measurement (at the ogive) is different with different cases. My bullet jam measurements are all too different for me to get an idea where to start these Berger bullets. If I want to start with a .010 jump, some will be jammed in the rifling and some way out - depending on the figure I use. They won't be the same. I wonder if I should do the same test with several new unfired cases to see if I get the same measurement? If so, that means that case length somehow affects CBTO - which doesn't make sense to me. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Finding Jam - I thought I knew how
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