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Old October 22, 2012, 06:25 AM   #2
buck460XVR
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Join Date: December 28, 2006
Posts: 4,341
Bullets meant for revolvers have a cannelure to roll crimp into as opposed to the taper crimp used on uncannelured bullets used in pistols. OAL is determined by the cannelure. IOW, you set the OAL to roll crimp into the center of the cannelure. Unless you are using very heavy bullets for the caliber you are using, OAL is not generally a factor. Some Bullets have two cannelures and you use the one closest to the manual specs. The exception to this would be plated bullets than do not have a cannelure. Then you load and crimp the same as for pistols.
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