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The Range
Ammo & Reloading
confused on oal on 9mm bullets
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<blockquote data-quote="Rod Snell" data-source="post: 1920545" data-attributes="member: 796"><p>Two things determine the "real" maximum OAL in YOUR gun: The room in the magazine and the point at which the ogive hits the rifling. The MINIMUM length</p><p>is determined by how much of which powder you use in the available space before you blow up your gun.</p><p>As Pak 40 said, the 9mm Luger is a real hazard to arbitrarily seat the bullet deeper, because the expansion ratio for a small-volume case does not leave much room for error.</p><p>Pressure increases near the max are NOT linear, so if the bullet does not hit the rifling and fits in your magazine, I'd go with the load data for the specific bullet, not try to use a general rule.</p></blockquote><p></p>
[QUOTE="Rod Snell, post: 1920545, member: 796"] Two things determine the "real" maximum OAL in YOUR gun: The room in the magazine and the point at which the ogive hits the rifling. The MINIMUM length is determined by how much of which powder you use in the available space before you blow up your gun. As Pak 40 said, the 9mm Luger is a real hazard to arbitrarily seat the bullet deeper, because the expansion ratio for a small-volume case does not leave much room for error. Pressure increases near the max are NOT linear, so if the bullet does not hit the rifling and fits in your magazine, I'd go with the load data for the specific bullet, not try to use a general rule. [/QUOTE]
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confused on oal on 9mm bullets
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