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Old December 10, 2012, 11:28 AM   #19
Unclenick
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Join Date: March 4, 2005
Location: Ohio
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I'll add that if you look at the SAAMI COL's for the .44 Special and .44 Mag, they are 1.615" and 1.610", respectively—the same for all practical purposes. The Magnum brass is longer to prevent accidentally chambering the higher pressure magnum rounds in a Special chamber. So unless you load the magnums a different COL, either for a long cylinder revolver like a Ruger or because a bullet has only a single crimp groove, you are looking at all listed .44 Special loads performing the same in the longer magnum cases as they do in Special cases. This means, for a given bullet weight and type seated to the same COL, you can look up Special and Magnum loads that use the same powders and just plant your powder charge somewhere in between to get middling performance.
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