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Rifles, Reloading, Optics, Equipment
Reloading
To crimp or not to crimp?
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<blockquote data-quote="lesvoth" data-source="post: 1386443" data-attributes="member: 100864"><p>Ten years ago I loaded 20 "normal" rounds and 20 with Lee's Factory Crimp Die for the purpose of discovering whether SD and ES is affected. This was done with a factory stock Ruger 77 Mark II in 30-06.</p><p></p><p>I loaded all rounds with 57 grains of Reloader 17 and Sierra 150 Match Kings.</p><p></p><p>The test was done without regard to accuracy. I was only interested in the SD & ES numbers. However, all rounds went inside 2 inches at 200 yards. All rounds were shot using the same aiming point and stayed in the same group. The "crimped" rounds had almost exactly half the SD & ES than those that were not crimped.</p><p></p><p>This was done on a beautiful North Dakota spring day with the wind howling and the temperature at about 20 degrees. Shooting next to a thick shelter belt kept the wind to a dull roar in the shooting lane!</p></blockquote><p></p>
[QUOTE="lesvoth, post: 1386443, member: 100864"] Ten years ago I loaded 20 "normal" rounds and 20 with Lee's Factory Crimp Die for the purpose of discovering whether SD and ES is affected. This was done with a factory stock Ruger 77 Mark II in 30-06. I loaded all rounds with 57 grains of Reloader 17 and Sierra 150 Match Kings. The test was done without regard to accuracy. I was only interested in the SD & ES numbers. However, all rounds went inside 2 inches at 200 yards. All rounds were shot using the same aiming point and stayed in the same group. The "crimped" rounds had almost exactly half the SD & ES than those that were not crimped. This was done on a beautiful North Dakota spring day with the wind howling and the temperature at about 20 degrees. Shooting next to a thick shelter belt kept the wind to a dull roar in the shooting lane! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
To crimp or not to crimp?
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