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Old December 25, 2013, 09:39 PM   #14
57K
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Join Date: March 2, 2013
Location: Heart of Texas
Posts: 788
Ashbane, the SAAMI Max. recommended OACL of 1.275" is pretty much for mag. functioning. Different brands of pistols have different chamber/throat dimensions. Obviously your loads have to be short enough to work through the mags and from there it becomes an issue of decreasing the distance the bullet has to "jump" to the rifling to enhance accuracy. For 230 gr. JHPs I typically load them to 1.230", but for 230 gr. FMJ you should be able to load longer and most data recommends that you do. Because they can't account for all of the throat dimensions used by the various manufacturers, proper OACL should always be established for a given bullet and the pistol it's to be fired from.
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