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Rifles, Reloading, Optics, Equipment
Reloading
"Jamming" bullet into the lands?
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<blockquote data-quote="Clark" data-source="post: 446912" data-attributes="member: 6600"><p>There are disadvantages of jamming the bullet into the lands: too long for the magazine, pressure spike, and unfired bullets can get stuck, spilling powder all over the action and leaving the gun non functional.</p><p></p><p>There is one advantage to jamming the lands, accuracy.</p><p>It is more accurate, because it gets one end, at least, of the bullet concentric with the bore.</p><p></p><p>In the 1960's there was the NRA and US ARMY article "Gauging Bullet Tilt" By A. A. ABBATIELLO, that has a mathematical derivation connecting concentricity with accuracy. </p><p></p><p>In the 1960s Purdie was patenting his reloading inventions to make ammo more concentric.</p><p></p><p>In the decades that followed Bart Bobbitt was competing at Camp Perry and getting great groups and explaining on the foundling early internet about jamming bullets into the lands.</p><p></p><p>There is nothing new about jamming bullets into the lands.</p></blockquote><p></p>
[QUOTE="Clark, post: 446912, member: 6600"] There are disadvantages of jamming the bullet into the lands: too long for the magazine, pressure spike, and unfired bullets can get stuck, spilling powder all over the action and leaving the gun non functional. There is one advantage to jamming the lands, accuracy. It is more accurate, because it gets one end, at least, of the bullet concentric with the bore. In the 1960's there was the NRA and US ARMY article "Gauging Bullet Tilt" By A. A. ABBATIELLO, that has a mathematical derivation connecting concentricity with accuracy. In the 1960s Purdie was patenting his reloading inventions to make ammo more concentric. In the decades that followed Bart Bobbitt was competing at Camp Perry and getting great groups and explaining on the foundling early internet about jamming bullets into the lands. There is nothing new about jamming bullets into the lands. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
"Jamming" bullet into the lands?
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