Thread: COL Science?
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Old March 6, 2012, 06:12 PM   #18
Mac Sidewinder
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Join Date: March 2, 2012
Posts: 84
Thanks NWPilgrim for the info. Since bullet seating depth affects pressure, how do you figure out a starting point when you can't find the exact bullet for a certain load? Such as you can match the wieght but not the specific brand of bullet? Do you find another bullet listing that matches the type and dimensions and go off that table for the seating depth? You can't just go off OAL and call it good right since different length bullets will be seated to a different depth affecting chamber pressures.

Also is COL and OAL used interchangably?

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